Throttle body needs aligning.

I replaced my throttle body. Now, my car won't start. I believe my new throttle body needs an alignment using a VAG COM diagnostic system.
Experienced mechanics share their insights in answering this question :
Yes, on your vehicle the throttle body does require a relearn procedure after replacement. You do indeed need the factory scan tool, or a scan tool with factory capabilities. Have the experts at YourMechanic a call, they have a wide array of scan tools that can be of help to you.

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Throttle body alignment must be performed in the following cases: The ECU is replaced and the ECU does not yet store throttle working features. The ECU is disconnected and the ECU memory is lost.
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.
When the motion range is not known, the ECU simply has no idea where to set the throttle. Using the throttle position sensors in the throttle body, the ECU learns the full open and full closed positions through a process known as a Throttle Body Alignment (TBA).
With the car off, push the accelerator all the way to the floor. Then turn your key to the `on` position (do NOT start the car) and wait at least 10 seconds. Release the accelerator, then take the key out.
Connect the voltmeter positive terminal to the wire connected to the contact signal from the throttle valve potentiometer. Turn on the ignition, but do not start the engine. In most systems the voltage reading should be less than 0.7V.
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.
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.
Set your multimeter to the 10 DC voltage range, place the black negative probe on the ground terminal of the TPS, and place the red positive probe on the reference voltage terminal of the TPS. If the meter does not read 5 volts, the TPS is bad.
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.
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.
Typically, it is recommended to get your wheels aligned every 2 to 3 years. However, to ensure the optimal safety of your car, yourself and others around you, it is best to opt for a wheel alignment every time you go to change your oil of the vehicle.
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.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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.

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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.

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Is it bad when oil gets into the throttle body?
ANSWER : Hello,
I believe what you are describing is a problem with your PCV valve. A bit of oil in the throttle body is not going to harm your motor and is certainly not going to cause it to blow up. At an idle, the PCV valve restricts air flow, to reduce this problem. At high manifold vacuum (idle), a spring loaded valve is drawn up and partially restricts flow to the crankcase. The PCV system is relatively simple. An inlet hose connects to a filtered air source. This is used to supply clean air that is drawn through the engine. Most of the time this air is supplied through the engine air filter. On a few designs there is a separate inlet filter that cleans the incoming air for the PCV system only. This filtered air flows through the engine, picking up fumes and vapors. The air exits through another hose, connected to manifold vacuum. The flow of air draws fumes from the crankcase and burns them harmlessly in the engine. This also creates a slight vacuum, relieving any pressure that may build. Negative pressure helps to prevent oil leaks and oil consumption by the engine. The PCV valve also helps regulate the amount of air flow, which helps prevent oil being drawn out of the engine. When the PCV valve is not working correctly, this will cause an imbalance in air flow and vacuum causing the check engine light to come on. i would suggest having a professional from YourMechanic come to your location to take a look at your Jeep.

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I changed the throttle body on 2006 Chevy impala and it says service throttle body after resetting it.
ANSWER : Hi there. Check the resistance on the throttle position sensor on the throttle body and the throttle pedal position sensor on the gas pedal. There should be a resistance on the sensors. If one or both sensors have no resistance or have a really high resistance, then I recommend replacing that or both sensors. If you need further assistance with your throttle body service message, then seek out a professional, such as one from Your Mechanic, to help you.

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Throttle Body needs replacing, is cardone re-manufactured ‘better’ than a ‘new’ throttle body
ANSWER : When it comes to remanufactured or brand new you are better off in most cases with the new one. The reason the company did not have the remanufactured one in stock is due to there has not been enough old cores returned to get rebuilt yet or the remanufactured part is in short supply. When it comes to getting a new or remanufactured part I have seen mixed results. The remanufactured one rebuilds an old throttle body using the base housing and installing all new parts in to it. The replacement parts will have to meet or exceed the manufacturers part performance and specifications. Just remember that if the manufacturer identified a product problem and changed the unit specification the dealer will get the new designed part before the aftermarket companies will and you may get old stock on the aftermarket where a dealer will only sell the newer part. If it was myself I would only use a factory new throttle body on this car. It may cost more but at least I would know I would get a new quality part with any last minute changes to product.

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Throttle body needs aligning.
ANSWER : Yes, on your vehicle the throttle body does require a relearn procedure after replacement. You do indeed need the factory scan tool, or a scan tool with factory capabilities. Have the experts at YourMechanic a call, they have a wide array of scan tools that can be of help to you.

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I am upgrading my 2007 GT’s throttle body to a BBK 62mm throttle body.
ANSWER : Hello. The meter setting will depend on what BBK requires you to set the throttle body at. If the setting is voltage related then you need to set your meter to DC volts. That is usually what they recommend. If it is a resistance reading that they need you will set it to Ohm’s. If this is something that you would prefer to have done, consider YourMechanic, as a certified mechanic can come to your home to adjust this and insure a proper replacement of your throttle body.

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I need to recalibrate throttle body
ANSWER : Hello. It appears that the only sort of throttle related calibration procedure that can be done may be for the pedal. As the pedal and throttle body work together this could possibly be a solution to the issue. To reset the throttle position, turn the key on and wait for dash warning lights to go out. Then depress the gas slowly until it bottoms out, and then release it slowly. Turn key off and start the car. If this does not help then it may be possible that your vehicle may require a custom tune for your new throttle body in order to turn off the light. I would also verify that the the aftermarket throttle body is emissions compliant and designed to work seamlessly. If it is not, this may be the reason why the check engine light is on.

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