Why does my car throw throttle body and traction control codes, when decelerating?

Throttle body has been replaced codes cleared. battery disconnected. the car runs great until it warms up and you slow down to around 40 mph. At that point it throws check engine, throttle body, and traction control warning lights, and immediately goes into safe mode. everything was cleaned before new part was installed. I have checked to make sure there were no air leaks. I was told the car has a learning process and should be driven through several drive cycles to learn perfect positioning for the new throttle body. But it has been at least four days of cycling it. Is it possible to get a de
Experienced mechanics share their insights in answering this question :
Hi there. In the case where an aftermarket throttle body is used as a replacement of an OEM component, these type of problems are common. The typical solution is reprogramming the ECU, but that’s something done at a dealership. I would suggest removing this aftermarket component and installing an OEM throttle body for the Dodge Avenger.

How to Identify and Fix Common car Problems ?

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The lightning bolt indicator on the Avenger`s dash is the Electronic Throttle Control (ETC) light. It signifies a problem with the throttle system that controls the amount of fuel provided to the engine. Problems with the throttle body sensor and the throttle body can cause the lightning bolt to illuminate.
a faulty tps can set a trouble code in the computer if the voltage value is either not present, sporadic, slow or constant, and this can illuminate your check engine light.
Accelerator Pedal Release Position Learning Procedure.

Make sure that the accelerator pedal is fully released. Turn ignition switch “ON” and wait at least 2 seconds. Turn ignition switch “OFF” wait at least 10 seconds. Turn ignition switch “ON” and wait at least 2 seconds.

One of the main causes of a malfunctioning throttle body is internal contamination. Due to the contamination accumulated in the throttle body, the throttle valve can no longer move properly, causing problems with the control of the air supply.
A malfunctioning TPS will cause your engine to run poorly. Generally the engine will idle fine but will have difficulty accelerating. This is because the computer isn`t telling the engine to inject as much fuel as is required, while at the same time airflow is increasing.
A throttle position sensor (TPS) is a sensor used to monitor the air intake of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle.
One is a vacuum leak due to a failed intake manifold or throttle body gasket. This will cause a major vacuum leak and trigger a lean condition.
The ECM sends a 5 volt reference voltage to the TPS which passes through a variable resistor of the sensing circuit. This of course is connected to your throttle pedal. When the 5 volts passes through the resistor of the TPS, the voltage will vary based on the position of the throttle plate.
The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.
A P0122 code is the generic OBD-II code defined as “Throttle Pedal Position Sensor/Switch (TPS) A Circuit Low Input.” This code relates to the vehicle`s Engine Control Module (ECM) and TPS Sensor Circuit A output voltage and is triggered when the voltage falls below the sensor`s anticipated range.
While there is no set mileage when it comes to the lifespan of the throttle body, it is suggested that you give it a thorough cleaning at about 75,000 miles. Cleaning the throttle body allows your car to operate more smoothly and it helps increase its lifespan.
You may be able to restore the throttle body`s operation by cleaning the throttle body can properly restore its operation.
The throttle position sensor governs the throttle body that allows air to flow into the engine. When the TPS goes bad, the throttle body may not open and the engine will not be able to run without air. It may cause erratic idling, stalling, and sudden surges of acceleration.
With poor electrical connectivity, you`ll experience unpredictable electrical signals that can confuse you. The throttle body will relay false information to the vehicle`s computer. This is a serious issue because it will cause the fuel-air mixture not to be in the correct proportions.
Lean condition

By themselves, the sparks plugs do not influence the fuel mixture. They are needed only to create an ignition to burn the fuel mixture. But upon going bad, spark plugs can create quite a peculiar case where they trick the oxygen sensors in modern cars to create a lean condition.

Once you have fitted a Throttle Position Sensor, or TPS, you will need to calibrate it from within MEITE. First, be sure you have correctly wired, and assigned the throttle sensor signal input to “TPS Raw” in the Analog Settings.
If you`re replacing the throttle body or reattaching it after cleaning, you`ll need to do a throttle relearn procedure.
To reset the electronic throttle control on your Dodge Charger, simply disconnect the battery for 30 seconds and then reconnect it. This will reset the system and should clear any error codes that may be present.
Electronic Throttle Control Indicator

This light, a lightning bolt between reversed brackets or parenthesis, will illuminate if there is a problem in the electronic throttle control system. It may be seen in red or yellow/amber. As an electronic system, it can sometimes be reset with a restart.

A throttle body replacement can cost anywhere from $250 to $650, depending on the type of car you drive and the repair shop you choose. The cost can be broken down into two parts: the cost of the throttle body itself and the labor charges from the shop.
While throttle-body cleaning is good preventative car maintenance, it should also help engine drivability. In fact, if you`ve noticed a rough idle, stumbling initial acceleration or even stalling – all when the engine is fully warmed up – a dirty throttle body could be the culprit.
The average cost for a Dodge Avenger Throttle Body Replacement is between $471 and $484. Labor costs are estimated between $47 and $59 while parts are priced between $425 and $425.

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Why does my car throw throttle body and traction control codes, when decelerating?
ANSWER : Hi there. In the case where an aftermarket throttle body is used as a replacement of an OEM component, these type of problems are common. The typical solution is reprogramming the ECU, but that’s something done at a dealership. I would suggest removing this aftermarket component and installing an OEM throttle body for the Dodge Avenger.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

on starting engine light & throttle control and traction control light comes on and car idols hard no codes when scanned
ANSWER : Hello, and thank you for writing in. Unfortunately the first technician is correct in that this can be cause by a wide variety of issues. Considering that it is intermittent, we can assume that there is either an electrical issue (sensor or bad connection), or that there is a particular part which is dirty or failing. There are a couple of ways you can approach this. One being that you attempt to clean, repair, and replace the many number of components that can cause this. A second being that you attempt to replicate the issue by unplugging sensors and trying various tests to try and narrow down what system is being effected. When dealing with a misfiring situation, you need to look into the air intake, ignition (spark), and the fuel systems first. One last consideration is to have the vehicle scanned by another type of code reader. They vary in brand, manufacture compatibility, and software. For more diagnostic help, contact our service department to schedule an appointment, or to obtain a quote once the issue is diagnosed.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

2008 jeep patriot. Throttle body and traction control light are on and very low power
ANSWER : Hi There,
The throttle body light may come on when the throttle control motor is not working properly. The throttle control motor is what opens and closes the throttle blade inside the throttle body. This may also suggest you have a faulty throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal.

The traction control system monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors at each of the four wheels that communicate with the Powertrain Control Module (PCM) regarding steering performance and stability in adverse weather conditions. The traction control system works by reducing engine speed and determining which wheel to apply brake pressure to in order to prevent the vehicle from sliding. The anti-lock braking system and the traction control system work together to maintain the stability of the vehicle. The computer uses this information received from electronic sensors regarding the rotational speed of each wheel, the horizontal motion of the vehicle, and the vertical motion of the vehicle to determine how to direct the traction control system or the anti-lock braking system to best control the vehicle when needed. When this warning indicator light comes on in the dashboard, this could be an indication of several issues such as faulty wheel speed sensors, a faulty steering angle sensor, a faulty rotational speed sensor or a problem with the steering rack. In some cases, the traction control system may simply need to be reprogrammed. I would recommend having a professional from YourMechanic come to your location to properly diagnose your traction control system.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

Throttle body replaced under warranty has a defect, now out of warranty.
ANSWER : Hi there:

Although we’re not lawyers and not permitted to provide legal advice, to my knowledge, State of California "lemon laws" apply to new vehicle purchases as opposed to replacement services; however, you might want to contact the California Bureau of Automotive Repair for specific guidelines. What I’d advise is to not continue taking your vehicle to a dealership if they are not going to cover the components under warranty. Instead have a professional mobile mechanic complete these repairs; or sell the Suzuki and purchase something a little more reliable; as fuel system issues are common with these vehicles.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

Can i retrieve CEL code from car … forgot what code it hade in my car .. put headgasket sealer and i erase the code ..
ANSWER : Once a trouble code is erased, it cannot be retrieved. The engine controller does not have a "recycle bin" like they have on Windows. If the car still has a problem, the code will come back up after some driving. However, the controller will not turn on the CEL until it has seen the malfunction on two separate "trips." A "trip" is a driving cycle where the car is started cold, driven until it is fully warm and through a certain number of accelerations, and shut down. So you might not see the CEL for a couple of days. As for the "head gasket sealer," I wouldn’t hold out too much hope of that solving a problem. At the very best it might put off the symptoms for a short while. If you need help interpreting codes that come up, or solving a head gasket issue, contact Your Mechanic. They can send a technician to your home or office to read the codes on your car and help you decide what to do.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

Got my rear main seal fixed, but my car keeps having a rough idle, cutting off & the Electronic Throttle Control Light is on.
ANSWER : It sounds like you may have a faulty electronic throttle control unit. The electronic throttle unit opens and closes the throttle blade based upon input from various engine control sensors, including the accelerator pedal. This unit also controls, among other things, the cruise control function as well. When this control unit fails, this may cause intermittent stalling issues and rough idle problems. This is usually repaired by removing and replacing the throtte control unit. I would suggest having an expert from YourMechanic come to your location to diagnose and inspect your vehicle at your earliest convenience.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

I have a bad throttle body, so instead of paying the dealership ridiculous prices, I order a throttle body myself.
ANSWER : After you replace the throttle body then all you have to do is turn ignition on with all accessories off. After 29 seconds of not touching anything the engine computer will relearn the new throttle body. Leave it on for at least 2 minutes before turning off. Start the vehicle and see if vehicle idles good and throttle works before driving. If no Check Engine Light comes on then you are good to go.

If you run into any problems or decide to get some help with the job, consider YourMechanic, as a certified technician can help ensure the correct installment of your new throttle body.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

Spraying throttle body cleaner into throttle body while engine is running
ANSWER : The engine running rough for a moment after using throttle body cleaner is a normal symptom. This should only last for a short period of time and then go away. If the issue does not go away after a few start ups or a short drive, it is possible that the throttle position sensor or mass air flow sensor could have been damaged as a result of using the throttle body cleaner. Many throttle body cleaners will specify if they are sensor safe. IF the throttle body cleaner is not sensor safe, one of the sensors may be fouled out. I would recommend having a drivability inspection performed on your vehicle to determine the exact cause if this issue persists. Consider YourMechanic, as a certified technician can come to your home or office to determine the cause of this issue.

Read Full Q/A … : Why does my car throw throttle body and traction control codes, when decelerating?

Eric smoalih

I am a certified master technician with the National Institute for Automotive Service Excellence (ASE), and I have been working as an auto mechanic for over 15 years. I am passionate about my work, and I take great pride in helping people keep their cars running smoothly.