What causes carbon build up on Honda throttle body?
All electronic throttle bodies accumulate carbon buildup on the throttle plate and bore—the Honda throttle body is no exception. The carbon accumulates after the engine is shut down and is caused by hot oil and gas vapors rising to the top of the engine where they collect on the cooler throttle body.
Can a bad throttle position sensor cause idle surging?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light
How to relearn the Honda throttle body reset?
Reinstall the Honda throttle body using a new gasket and torque to specifications. Now that the carbon buildup is gone, you must “teach” the computer where the fully closed position is. This is called a Honda throttle body relearn or Honda throttle body reset.
How does the throttle plate work on a Honda?
At idle, the computer commands the throttle plate to crack open slightly, much like the old carburetors. This feature eliminates the need for an idle air bypass valve. When the engine is off, the throttle plate is fully closed. That’s where the carbon buildup becomes a problem.
All electronic throttle bodies accumulate carbon buildup on the throttle plate and bore—the Honda throttle body is no exception. The carbon accumulates after the engine is shut down and is caused by hot oil and gas vapors rising to the top of the engine where they collect on the cooler throttle body.
What happens when the throttle position sensor fails?
The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create safety hazard for you and other motorists at worst. This sensor can fail gradually, or all at once. In most cases, the Check Engine Light is illuminated if a TPS failure is detected.
Reinstall the Honda throttle body using a new gasket and torque to specifications. Now that the carbon buildup is gone, you must “teach” the computer where the fully closed position is. This is called a Honda throttle body relearn or Honda throttle body reset.
Why does my car pop when I press the throttle?
As the engine is running and you have your hand cupped over the opening, press the throttle to see if the popping gets worse, quits or smoothes the engine out. By choking the engine this way you introduce more fuel to the cylinder. The result tells us to either move on or stop and check the fine inlets for the primary fuel meter circuit.