sshh

car idle OK but after aggressive run on the car when pushing on clutch or being on neutral rpm goes up to about 3k after touching the gas pedal it goes back to good idle. looking the gas cable and throttle body from out side and it is not stuck, looked on TPS values from AEM ecu when it happens and it says throttle is open about 3% after touching the gas pedal it goes back to 0.

TB CLEANED ,same issue.

What could it be?

Thanks!
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MR.johnson

Check iacv, fitv or vac leaks.

sshh

iacv not connected, fitv makes TB to be open?

if it was vac leak i wil always have bad idle no?

could it be something from the blow off valve? keeping air that pushes the TB.

MR.johnson

how do you have the vac lines hooked up? why is the iacv not connected? and yes fitv is for cold start ups.

sshh

mistake iacv connected, found the problem TB sometimes stuck.

it is loosen at the point of TB almost close, how to adjust it?

Thanks