Harley throttle position sensor symptoms. As we rode on it kept doing it.
How To Recognize Tps Issues On Harley Davidson? Harley Davidson TPS problems may manifest as engine misfires Feb 3, 2022 · Here are some of the most common symptoms of a bad sensor. Orient new throttle position sensor (3) as shown and that if fits flush to induction module. Briefly, here is what it says: Throttle Position Sensor (TPS) circuit DTC's P0120, P0220, P0122, P0123, P0222 and P223 should take diagnostic priority over a P2135 code. Aug 20, 2023 · 3. 6. There's a diagnostic that runs thru all the switch functions and it might include the twist grip sensor, not sure but it's worth a look. The "E" refers to a particular circuit, sensor, or area of a particular circuit. Common symptoms of a bad throttle body include dirt and grime, the check engine light, and an erratic idle. Although generic, the specific repair steps may vary depending on make/model. The sensor sits on the throttle body in most May 18, 2014 · We would like to show you a description here but the site won’t allow us. In order to test a non-adjustable one, such as a potentiometer TPS, a voltmeter is used, like so: 1. Last, the powertrain control module might be damaged, meaning that the throttle position sensor is actually in fine condition. Jul 5, 2024 · The Throttle Position Sensor (TPS) is a vital element in a vehicle's engine management system. #11 · Aug 22, 2012. My friend was following me and said my bike was emitting some nasty smells. May 10, 2024 · This code is related to the throttle/pedal position sensor/switch ‘E’ circuit low, and it can cause a variety of issues with your bike’s performance. When the PCM sees a voltage that is outside of normal operating range, P0220 will set. It relays information about the throttle plate’s position, enabling the ECU to make precise adjustments. Over time, the TPS can gradually wear out or develop issues, affecting the performance of the bike. If you notice any of the symptoms of a faulty TPS, it’s important to have it checked as soon as possible. The powertrain control module (PCM) logs a P0122 code when the throttle position sensor “A” displays lower voltage than normal. The powertrain control module (PCM) triggers this code when it detects abnormal voltage readings from one of your car’s throttle position (TP) or accelerator pedal position (APP) sensors. I do not have any symptoms now and the GM letter just states save this letter in case the problem shows in the future. The P0120 code can be caused by either a faulty TP or APP sensor, damaged Oct 27, 2022 · Here are 5 ways you can tell if you have a bad throttle position sensor: #1. Symptoms of a Faulty Throttle Position Sensor Jun 18, 2023 · The system has a reset feature built in. Jump to Latest Follow Harley Davidson V-Rod Forum. One problem area is the throttle sensor connector inside the right grip. 7M posts 69. 8. In this article, we… Read More Harley Throttle Position Sensor Symptoms; Must Read. #6 · May 3, 2014. P0120 Mazda Throttle Position Sensor Signal Out of Range. For whatever reason the EMS went into limp mode. They are susceptible to water ingress which causes corro Nov 11, 2022 · In this video, we are going to show you the six main bad crankshaft position sensor symptoms. Unplug it, apply dielectric grease to the pins, plug it back in and wrap a small tie strap around it to keep it plugged tight. Low voltage coning in means low voltage coming out. 29580 posts · Joined 2009. Yeah, sounds expensive. The throttle position sensor ranges in price from $30 up to $100. The backfiring you describe doesn't sound like a crank sensor. Sep 7, 2014 · Once we got on the main road I got on the throttle a little and the bike was sputtering and had loss of power. P0346 – Camshaft Position Sensor “A” Circuit Range/Performance. Idling Issues. 20 volts (V). Note: Throttle Position Sensor (TPS) circuit DTC's P0120, P0220, P0122, P0123, P0222 . The pipe being the main culprit. -do not adjust the throttle position sensorhas epoxy in the screw holesthis should be used as a last resort and unless you have the proper tools to check the efi voltage, you can really screw up the efi. #10 · Dec 29, 2015. Harley Crank Position Sensor - 5. It is usually a black or gray plastic sensor with an electrical connector on top and is attached to the throttle body with two or three screws. Engine Misfire. 1) Hard Starting. P0120 Mercedes-Benz Throttle/Pedal Position Sensor/Switch A Circuit Malfunction. This is a relatively simple fix that you can do yourself. My manual does not show me how to change it out. Third, the entire unit might be faulty, resulting in inaccurate voltage readings. Like most engine problems, a bad throttle position sensor will trigger the check engine light to illuminate your car's instrument panel. #1 · Dec 13, 2012. The independent just wants to start replacing sensors, then the ECM if the new sensors don’t fix things. High idling speed. May 10, 2024 · If the wiring and voltage check out, you may need to replace the throttle position sensor. Install the New Sensor: Place the new TPS in the correct position and hand-tighten the screws to avoid over-torquing. In 2008 Harley-Davidson introduced a new throttle system called Electronic Throttle Control (ETC), which eliminates the throttle cables connecting the throttle and the throttle Feb 22, 2024 · Carefully disconnect the TPS from the throttle body, remembering to keep track of all screws and connectors. Symptoms of bad throttle valve position sensor in your car. We turned back. Web the crank position sensor is located on the right side of the engine, near the camshaft. 2. Check Engine Light. The sensor itself is only $40. com Jun 20, 2024 · Symptoms of a faulty Throttle Position Sensor. Located in center of front head. The camshaft sensor sends data about the camshaft performance to the powertrain control module (PCM). Code showing up is p0373. The PCM regulates the fuel injection ratio, ignition timing, and air-fuel Aug 25, 2008 · This is a mechanical setting. Usually when bad, the bike wont accelerate, dies spits and pops, dies won't run hardly What are the symptoms of throttle position sensor failure? Throttle position sensor (TPS) failure in a Harley Davidson can lead to various issues with the engine’s performance and overall riding experience. The throttle position determines how much air enters the intake manifold of an engine; when it is wide open, more air enters; when it is nearly closed, less air enters. The set screws are the stop limits to the throttle and are not electrically based, but a physical stop. 3K members Since 2003 A forum community dedicated to Harley Davidson V Nov 7, 2023 · The code tells you that there is a problem with the reading come from the sensor or switch, and often the problem is just that. Jun 13, 2012 · 22 posts · Joined 2012. The throttle position sensor (TPS) is a resistor that changes the value according to the Feb 12, 2009 · February 12, 2009. orlandjoe said: The throttle position sensor must be in or near the throttle body. The throttle position sensor is tasked with tracking the position of the throttle. #1. Thanks Aug 12, 2012 · 5576 posts · Joined 2006. Stalling. When my bike had this problem I would have sworn it was vapor locking. Second, the sensor might be experiencing a short in the circuit connecting the unit to the ground wire or another wire. Aug 25, 2016 · Runs for a while until I turn it off (Engine light and Throttle sensor light are both on) I turn the truck off, then try to restart, it turns over, but then won't start (I believe because the Throttle Position sensor light is on) I searched the forum before posting, but I could not find anything similar. Second, debris or torn up floor mats often block and gum up the pedal position sensor, and that could cause your code P0122. As its name implies, the throttle position sensor keeps track of the throttle’s position. #2 ·Nov 8, 2022. Use skinny common screwdriver to wedge in there behind the clip on left (primary) side of connector to release it. Shut off the bike and start it , just make sure you do not twist the throttle. Labor expenditures for a session are typically around $50 to $200. 4496 posts · joined 2010. On some vehicles that lower limit is 0. The Throttle Position Sensor (TPS) is an important component of the fuel management system in your Harley-Davidson bike. Sep 20, 2022 · These codes are mainly from P0120 to P0124, and they relate to bad TPS circuits, input, or switch problems. Aug 31, 2023 · Bad throttle position sensor symptoms. Surging/erratic idling. to/43N4WNr - All-in-One OBDII Scanner https://amzn. P0120 Lexus Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction 📷. The TPS is part of the engine P0123 is a diagnostic trouble code (DTC) for "Throttle Pedal Position Sensor/Switch (TPS) A Circuit High Input". This ensures the sensor communicates properly. Grips and see whether it is contaminated with dust or dirt, then clean these cables with the help of a brush or cloth. To directly monitor the throttle position, the sensor is Jul 21, 2016 · 3533 posts · Joined 2011. Some of the other codes that may be related to this issue include: P2120: Throttle/Pedal Position Sensor/Switch “D” Circuit; P2121: Throttle/Pedal Position Sensor/Switch “D” Circuit Range/Performance Jan 15, 2024 · What Is A Throttle Position Sensor? A throttle position sensor (TPS) monitors the position of the throttle in an internal combustion engine, including those in Harley Davidson motorcycles, to manage fuel mixture and engine performance. Step 02: Locate the TPS on the throttle body of the engine. Jun 23, 2022 · Code P2138 is an accelerator pedal position (APP) sensor or throttle position (TP) sensor code. It occurs when the engine fails to ignite the fuel mixture injected into its cylinders, resulting in inadequate combustion that reduces power and can cause other issues. Sep 8, 2021 · P0120 code is defined as “Throttle/Pedal Position Sensor ‘A’ Circuit. While a faulty steering angle sensor can lead to issues like an unresponsive or wandering steering wheel, a malfunctioning throttle position sensor may cause problems with acceleration or idling. The green wire carries the throttle position sensor’s signal voltage to the ECU. This code sets when the output voltage reaches higher than 4. Jul 6, 2013 · SCHMIDTY. A Scanalyzer, Digital Tech shop computer or multimeter with the correct breakout box is required. If it is a faulty throttle position sensor, you definitely don't want to wait to get this checked out. When the driver steps on the gas pedal, the APP sensor sends a signal to the TP sensor, which provides throttle angle feedback to the PCM. A temp voltage shortage will cause the code to show up but not hurt operation. Align screw holes and install new screws and tighten to 4 N·m (35 in-lbs ). Basic Testing A malfunctioning throttle position sensor will relay bad data to your 2006 Hummer H3 's computer and usually result in poor fuel economy. The "D" refers to a particular circuit, sensor, or area of a particular circuit. Dec 24, 2015 · B. Sep 8, 2022 · There are key symptoms that can help you identify if your Harley has a crank position sensor problem, these include the following: 1. Nov 8, 2022 · SCHMIDTY. Because the TPS is monitoring the throttle plate, any malfunction will be registered. If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a bad TPS. 5 for over two seconds. Significance of Code P2127. Jan 25, 2024 · Jerking or Misfires: Sudden jerks or misfires can happen if the CPS is sending wrong timing info. 1881 posts · Joined 2009. The most common symptom is your check engine light. ”. At WOT (Wide Open Throttle) the TPS signal voltage will approach a full 5 volts. Throttle plate must be closed for proper installation of sensor. You will also learn about the function, These are the most common symptoms of the Harley MAP sensor failure. OE quality replacement for part number 27659-06 to restore original performance. 17 - 0. It is important to address this code as soon as possible, as it can lead to further damage to your vehicle if left untreated. Normal cleaning/maint should solve any sticking problems. Electronic Throttle Motor Wires Identification. P0122 Throttle Position Sensor/Switch A Circuit Low Input. Wrap Up. Feb 12, 2023 · The P0123 trouble code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) detected high output voltage from the throttle position sensor A. Jan 26, 2023 · P0120 Throttle Position Sensor/Switch A Circuit Malfunction. Loosen the Throttle Position sensor retaining Screws. While it is a generic code that can occur in various car makes and models, it is particularly more common in Chevrolet, Toyota, and Nissan among others. In total, you can expect to pay between $250 and $400 for a throttle position sensor replacement. Feb 27, 2023 · Bad Throttle Body Symptoms | Bad Throttle Position Sensor Symptoms In simple words, code P1511 directly indicates that something is wrong with the throttle grip sensor in your Harley motorcycle. Let’s go through the step-by-step symptoms of TPS failure in a Harley Davidson: Poor Throttle Response Apr 13, 2024 · When it comes to steering angle sensor function, the symptoms of failure are quite different from those of a throttle position sensor. P0120 is a diagnostic trouble code (DTC) that indicates there is a problem with the throttle position sensor (TPS) circuit, specifically circuit “A. Mar 26, 2023 · The labor costs will be anywhere between $150 and $300, depending on the hourly rate of the mechanics and the amount of work it takes to access the throttle position sensor. Positioned on the throttle body, it tracks the throttle valve's position, furnishing essential data to the engine control unit (ECU). Dec 3, 2023 · For the most thorough and precise sensor calibration, use an OBD-II scanner tool. Symptoms: Driveability or Performance Concerns; Abnormal or Erratic Mechanical Operation; Intermittent or Erratic Electrical Operation. 29573 posts · Joined 2009. While some of these symptoms could also be signs of other engine issues, watch out for these symptoms of bad TPS, or throttle position sensor. Rough Idling. Inspect the related components and connectors for any signs of corrosion or damage. The TPS is a crucial component that helps your vehicle’s engine control unit (ECU) determine the correct amount of fuel and air to mix for optimal performance. Check Engine Light: When the computer gets confused by the CPS, the check engine light might shine. P0348 – Camshaft Position Sensor “A” Circuit High. Since replacing the TPS is fairly easy in most cases (depending on its Feb 3, 2015 · jgetz80 said: Does anyone know how to reset or adjust a tps on 05 Electra glide classic. Check the Powertrain Control Module for any faults. According to RepairPal, the average cost for a Hyundai Sonata Throttle Position Sensor Replacement is between $157 and $198. P0120 Mitsubishi Throttle Position Sensor Circuit Malfunction. #2 · Jul 7, 2013. Misfires are one of the most common and noticeable symptoms of a faulty Harley MAP sensor. The system wants to use a higher rpm as the new idle speed the next time the engine is started if the ignition is turned off while the throttle is not at zero percent throttle. I replaced the sensor cost about fifty bucks it immediately solved the problem Throttle Position Sensor Replacement Cost. Check engine warning light. Jan 7, 2023 · The P0122 trouble code signifies that the throttle position sensor or switch A circuit has a lower input than expected. It ran fine for 300 miles with the new sensor then went right back to the same problem. The P2127 code is a diagnostic trouble code (DTC) that indicates a low input from the throttle or pedal position sensor/switch ‘E’ circuit. Your Mariner’s throttle body controls the amount of air that enters the engine. Below are the most common symptoms of a bad throttle position sensor. In simpler terms, it’s an OBD-II code triggered when one of the two sensors in your gas pedal malfunctions. NOTE: The PCM knows that any large change A faulty throttle position sensor can cause a stuck throttle on newer Harley Davidson models with electronic fuel injection. The ECM requires TPS input to control bypass air control, idle air control, and idle fuel trim. Jul 4, 2023 · Green: Sensor Signal. As our mechanic explains in the video above (1:07), a gas pedal has two APP sensors to essentially serve as fail-safes for each other in Nov 8, 2020 · That does indeed sound like a throttle position sensor (TPS). Apr 27, 2014 · 350 posts · Joined 2003. Jul 15, 2023 · The cost of replacing a throttle position sensor in a Hyundai Sonata can vary depending on the make and model of the vehicle, as well as the age and condition of the sensor. Often but not always the problem happens when the bike is warmed up. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. To fix the P2127 fault code, check the accelerator pedal position sensor and its wiring harness for any damage or poor electrical connection. Aug 23, 2022 · P0120 Jeep Electronic Throttle Control Motor Performance. Step 03: Remove the electrical connector from the TPS by pushing down the locking tab and pulling the connector off. When you turn off the motorcycle at 1,800 rpm, the engine’s new idle speed will be somewhere around 1,400. May 17, 2021 · In this video, you will learn 8 symptoms of a bad manifold absolute pressure sensor (MAP SENSOR). Connect the scanner to your vehicle’s computer data port, usually located under the dash. Knowing the symptoms of a defective throttle position sensor can help you quickly diagnose the problem and make needed corrections. However, problematic throttle position sensors cause the Check Engine light to flash intermittently Mar 16, 2016 · You can read the entire TSB here, or click over to the Harley website and look up recalls and TSBs for your bike based on the VIN here. Raise front of tank, replace ETS, lower tank back into place. A faulty TPS sensor can disrupt idling in various ways, such as: Rough idling. valve body. As we rode on it kept doing it. Felt like it was going to die out at times. May 29, 2007 · 10) One HD dealer tried to tune the Power Commander (useless) and the other replaced the Throttle Position sensor. Dec 30, 2013 · Key off. P0124 Throttle Position Sensor/Switch A Circuit Intermittent. Harley Crank Position Sensor Location - Web how to install harley davidson dyna crank sensor. Switch and combination TPS are tested with an ohmmeter. A P2122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. Verify that the throttle plate opens and closes smoothly with no binding. The no throttle indicates a bad sensor. The most common code is, P0121 is for “TPS “A” Circuit Range Performance Problem”. Watching this video will help you diagnose to see if it's t The throttle position determines how much air enters the intake manifold of an engine; when it is wide open, more air enters; when it is nearly closed, less air enters. Jan 1, 2024 · To reset the throttle by wire on a Harley, turn off the motorcycle, then turn the ignition to the ‘on’ position without starting the engine. Yes. In this article, we… The P2122 code indicates that the powertrain control network (PCM) has detected an issue with the throttle position sensor (TPS), specifically that the sensor is running too low of a voltage. Throttle position sensors are one of the common causes of surging, stalling and poor engine running. to/3PWHZTY - New TPS https://amzn. The Check Engine Light Turns On. It is normal on startup to idle slightly higher until it warms up but it should level out and not die on you or have issues running. One of the first bad throttle position sensor symptoms is the Check Engine Mar 1, 2016 · If the throttle is open when starting on a throttle by wire bikes, it fools the sensor to think "this is the closed throttle position" and will idle fast. #3 · Jul 21, 2016. 8v at WOT. is centered, do this by rotating the sensor on the throttle. You control the throttle body position with the gas pedal. Engine Rough Idling, Engine stalling, or idles too slowly. Disconnect the throttle sensor harness. Apr 12, 2023 · In this video, we'll discuss the common bad Throttle Position Sensor symptoms (TPS) and how to Reset/Recalibrate it. Like I said before, if you are getting a voltage reading when crank over the engine , about 1 -2 volt pluses, then the sensor has to have continuity. Test pin #3 in the apps plug for about . 45 volts. Most Sep 9, 2022 · The ETC system is composed of an APP sensor, an electronic throttle actuator (servomotor), a throttle position (TP) sensor, and a PCM. Tighten the TPS retaining screws. P0123 Throttle Position Sensor/Switch A Circuit High Input. Follow the procedure outlined in the H-D electrical service manual. Mar 2, 2023 · P0345 – Camshaft Position Sensor “A” Circuit. Feb 17, 2024 · Regular maintenance and proper care can go a long way in preventing and addressing throttle position sensor problems. You might wonder if a ‘bad throttle position sensor causes misfire’. Jul 8, 2021 · Diagnostic Trouble Code (DTC) P0122 stands for “Throttle Position Sensor/Switch A Circuit Low Input. An engine’s air intake is tracked by a sensor called a throttle position sensor (TPS). The PCM is responsible for logging this code when the input doesn’t mean normal parameters. Oct 25, 2023 · Topic: Bad Throttle Position Sensor Symptoms Welcome to our comprehensive guide on the Throttle Position Sensor (TPS)! In today's video, we delve deep into Jan 12, 2016 · Bad Throttle Position Sensor Symptoms. Common causes of TPS problems include wear and tear on the TPS itself, a dirty or clogged air filter, and poor performance. The typical cost of replacing your throttle position sensor is around $80 up to $300, based on your vehicle type, labor expenses, and location. One of the most common signs of a faulty camshaft position sensor is that your vehicle engine will be hard to start, or the engine won’t start at all. Finally, it doesn’t matter if all the sensors and switches are working correctly if the The Throttle Position Sensor (TPS) is an important component of your vehicle’s fuel injection system. The B refers to a particular circuit, sensor, or area of a particular circuit. Jan 13, 2011 · Often dirty battery cables or broken, modified corroded wires. Power loss when accelerating. We will also show you where the crankshaft position sensor is l Feb 23, 2024 · There are several potential causes of a P2138 code, including a faulty throttle pedal position sensor, a faulty throttle position sensor, or a wiring issue between the two sensors. TT418A service bulletin applies to 2008-Later Touring, Police & Trike Models. 5. 1 hour to change. Dec 16, 2012 · throttle position sensor. In summary, the P2122 code on your Harley indicates a problem with the throttle/pedal position sensor/switch. Dec 13, 2012 · 31355 posts · Joined 2008. Classic symptoms of Engine Temp Sensor going bad. Reconnect the electrical connectors, ensuring a firm and secure fit. Engine dying when coming to a stop. This information optimizes the air-fuel mixture, enhancing engine efficiency. Symptoms of a Faulty Throttle Position Sensor. A P2127 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. It should be slightly open, allowing in just enough air to keep the car running at an idle. If the sensor is not functioning correctly, it may feed the wrong data into your engine management system. Our certified mobile mechanics can come to your home or office to perform the Check Engine May 10, 2024 · The P2123 code is just one of many trouble codes that can be associated with issues in the throttle or pedal position sensor circuit. I found this out after years of riding a carbed evo and switching to a FI TBW twin cam. The Check Engine Light comes on when the TPS sends an incorrect reading to the computer. The accelerator pedal’s position in relation to the throttle position sensor determines how far open the throttle valve (or blade) is. Slowly rotate the throttle to the fully open and closed positions several times. Insert Jumper pin in the Diagnostic plug. Adjust the Throttle position sensor until the mark on the pod. When the throttle is closed the signal is near . Here are some of the main symptoms of a bad throttle position sensor visible even without using a scanner: Rough idling. Sep 28, 2010 · The symptoms are exactly like your bike is starving for fuel. #3 · Jun 14, 2012. If you notice engine misfire, stalling, or rough idling on parked or when you stopped, it could be a clear sign that your throttle position sensor is long gone. It did it the whole way home. About $100. If you have the sensor hard wired into the harness use the radio diagnostics to test the sensor. Address throttle position sensor problems as soon as possible to avoid the risks of accidents and damaging your delicate engine. P0347 – Camshaft Position Sensor “A” Circuit Low. to/3NYNeQv - Throttle Body Cleaners The throttle valv Although generic, the specific repair steps may vary depending on make/model. One common symptom is engine misfires. As your car idles, there should be relatively little movement in the position of the throttle. 7. Follow the prompts to reset, calibrate, or program the new throttle position sensor. Engine Won’t Idle Smoothly, Idles Too Slowly, or Stalls. 0 out of 5 stars Web if you’re concerned with the throttle body or are experiencing acceleration and idling issues, review these throttle body symptoms to determine whether your vehicle needs a new throttle position sensor and what you can do to repair, replace or reprogram your sensor. Harley Throttle Position Sensor (TPS) for Harley 06-17 FLST, FXST, Dyna, and 06-07 touring models with cable throttle body. : coughing, hesitating when you roll on the throttle. 1. To fix the problem, examine the throttle. Jul 20, 2023 · https://amzn. YourMechanic estimates the cost to be between Nov 12, 2019 · If your Mercury Mariner has a faulty throttle body, it can cause it to run terribly. Key on. I just wonder if I have to re-tune it after I replace it. Misfires. See full list on motorbikeinsider. Key off. The throttle grip sensor is also called a throttle position sensor. or bad output wires. Finally, turn the ignition off and then start the engine to complete the reset process. This indicator is a vague symptom, as it could also point to a variety of issues, but you Feb 12, 2023 · These are six of the possible symptoms you may notice when the Throttle Position Sensor (TPS) goes bad. bobg1951chevy. 5 volts at idle and range smoothly up to about 3. Fuel Economy: If the CPS tells lies, the bike uses extra fuel to try to fix it. If you own a Harley Davidson motorcycle, it’s important to be aware of the signs that indicate a malfunctioning throttle position There are many symptoms of a failed throttle position sensor. However, the presence of one of these codes Feb 22, 2024 · 3. Car jerking or shaking while driving. Feb 23, 2024 · Symptoms of a Faulty Throttle Position Sensor If you are experiencing issues with your vehicle’s throttle response, it could be due to a faulty throttle position sensor (TPS). Mar 15, 2024 · Throttle position sensor failures: symptoms, diagnoses, and fixes. Just make sure to clear the code using the OBD-II scanner after replacing the sensor. The tps is in the throttle body and is not serviced separately by the moco, not sure who's heads you have but some of the symptoms you describe can be caused by a very aggressively scavenging pipe along with large, slow moving ports. I bought my bike used and it has quite a bit done to it (different cams, polished screaming eagle heads, 103 big bore kit, thunderheader 2 into 1 exhaust and k&n air cleaner) Also, was Their improper functioning could cause symptoms such as poor ignition, inefficient throttle response, or an idle stop. P0349 – Camshaft Position Sensor “A” Circuit Intermittent. 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