Installed new throttle body on a once smooth idling M54. (225k)
Once installed...
The idel is crap[emoji107] crazy! Idel bounces up and down, up and down.... never settles down or smooths out!
Smooth as butter before I installed the aftermarket TB.
Doesn't recognize the gas pedal!
I'll de-install tomorrow!

Do these need to be callabrated?

What gives?



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