How do I do the throttle body relearn 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.

How do I reset my electronic throttle body?

Resetting your electronic throttle control manually can be a tricky job. First, make sure the accelerator pedal is fully released. Next, turn the ignition on and then turn it off and wait for ten seconds. During these ten seconds, be sure the throttle valve is moving by listening for a sound of operation.

Do you have to relearn after cleaning throttle body?

Cleaning the throttle body allowed more air to enter the engine, and the computer is compensating by adding more fuel. The idle will relearn if you put the vehicle in drive and allow the idle to come down with all accessories off for about two to three minutes.

How do you calibrate a throttle body?

Make that the accelerator pedal is completely released or free, then turn “ON” ignition switch and wait for 3 seconds. You want completely depress the accelerator pedal very hard and fully release the accelerator pedal as quickly as possible 5 times within 5 seconds.

Does a throttle body have to be programmed?

In fact, on some engines a new throttle body needs to be programmed with a factory, or equivalent, scan tool. The technician cannot even clean the carbon out of the throttle body in some cases without setting a “check engine” light.

Can you adjust the idle on a throttle body?

Turn the idle screw, now exposed from the protective rubber coating, in order to adjust the idle. Loosen the screw in a counter-clockwise fashion to increase idle speed or tighten it in a clockwise manner in order to decrease the idle speed. Ideally, you will want the idle to rest at 650 RPM.

How do you adjust the throttle position sensor on a Chevy?

Loosen the throttle position sensor retaining screw with a Phillips-head screwdriver. Adjust the TPS by moving it back and forth until the voltage is between 4.0 and 5.5 volts. Hold the TPS in place and tighten the retaining screw with the Phillips-head screwdriver.

How to do a throttle Relearn on a GM Silverado?

After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. Performing a throttle relearn on GM throttle-by-wire vehicles can easily be done with the Mac Tools Mentor Touch Scout, No. ET6100. For example, to perform a throttle relearn on a 2008 Silverado 5.3L, select and run the Idle Learn Reset test.

What happens when you replace the throttle body?

If you replace the throttle body, the PCM won’t know and will continue to use the adaptive settings as if the carbon buildup is still in place. If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle.

How is the gas pedal connected to the throttle body?

In those vehicles, the “gas” pedal isn’t connected to the throttle body by a cable. The pedal simply provides an electronic signal, telling the throttle body how much acceleration you’re requesting. A motor and gear reduction set inside the throttle body opens and closes the throttle plate to accomplish your request.