Heya all. I replaced my throttle body a couple weeks back because the "Service Engine Soon" light illuminated (and the dealer determined that the throttle body went bad). During the first week of driving with the new throttle body, the car had a deeper, fuller roar to it (and it felt more responsive when depressing on the gas pedal). However, days later, the car reverted back to its original effects that I'm not liking. Here are the symptoms:

* The car feels as if it's choking up it feels as the car's holding back.
* The deep, full roar isn't there any more. It almost sounds as if the full air flow isn't even going through.
* Acceleration is dampened especially in the first 3 gears (or more, I suppose).

Anyone experience this as well? I don't know if the throttle body is off again or what. Any suggestions as to what's going on or what I can do about it?

Thanks in advance.

 

Try an ECU reset, either by the pedal method or by battery disconnect and see if that helps. The methods are described in our FAQ/DIY forum.
If not, the dealer will have to look at it again.
G/L
C.

 

The problem still persists. I have a feeling the throttle body is off again. When it's functioning correctly, I get more power throughout the RPMs and the sound of the car is a bit throatier. Are any of you experiencing the same thing? Will the Motordyne mods help to reduce the instances of the throttle body reverting to its dampened state?