Throttle body relearn
I had my throttle body changed about 3 days ago and after all unhooking battery nd reset computer still high idle and revving.Can Anyone help
My car has 108892 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
As you may know, the new throttle body installed in your engine needs to go through a "re-learning" process with the ECU to bring the idle back down. Try doing the following which should bring the idle back down to a normal operating level:
1) Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal.
2) After 3 minutes, turn the engine off and leave it off for 60- seconds.
3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods you may see a check engine light. If you have access to a scanner, scan for codes and if you get throttle body related codes, clear them.
4) If the idle speed is still off, drive the vehicle at speeds above 45-mph and operate several acceleration and deceleration cycles. Then repeat step #3 one last time.
This should bring your idle back down to normal. Should you need further help with this, please reach out to us here at YourMechanic to schedule an appointment to have one of our qualified mechanics come to your location to take a look at your vehicle.
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If you`re replacing the throttle body or reattaching it after cleaning, you`ll need to do a throttle relearn procedure.
Step 1: After you finish cleaning your throttle body, start the car and let it idle for four minutes. The RPMs might be high at first but should gradually settle down as the ECU absorbs the data. Step 2: Turn off the car for 90 seconds. Then, turn it back on and allow it to idle for another four minutes.
Disconnect the idle air adjustment valve by locating and disengaging the electronic connector that holds it to the throttle body. Turn the idle screw to adjust the idle—turn the screw to the left to increase the RPM or to the right to lower it.
The vehicle may need to be driven for 10 miles (16 km) or more to relearn the idle and fuel trim strategy.
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.
In the event you are experiencing an erratic idle after loading a tune or after performing any action that clears KAM (Keep Alive Memory), an Idle Relearn can help you get back on track. The KAM or “Keep Alive Memory” is the memory that is stored in the powertrain control module (PCM).
Throttle position sensors are mounted to the side of the throttle plate and measure the position of the throttle — essentially, how far down the gas pedal is pressed.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I have a bad throttle body, so instead of paying the dealership ridiculous prices, I order a throttle body myself.
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.
Spraying throttle body cleaner into throttle body while engine is running
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.
Is it bad when oil gets into the throttle body?
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.
I changed the throttle body on 2006 Chevy impala and it says service throttle body after resetting it.
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.
I am upgrading my 2007 GT’s throttle body to a BBK 62mm throttle body.
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.
Hey so I have a 2011 Chevy Malibu I’m replacing the throttle body because the throttle body injector stopped working. Do I have to
It is always recommended to replace the sealing O ring or gasket under a throttle body when removing or replacing it. If not then a vacuum leak can develop causing driveability symptoms and check engine light to come on.
Throttle Body needs replacing, is cardone re-manufactured ‘better’ than a ‘new’ throttle body
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.
Throttle body replaced under warranty has a defect, now out of warranty.
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.