I ran a boost leak test and i was leaking in the TB. Got the mil.spec one in, now that every time i turn my wheels my idle goes up and down a little. What could cause this?

Tien

 

up, trying to get my car running correctly today.

 

did you touch the TPS at all? if all you did was take TB out, replace gasket and put everything back then your problem is not related to the TB, I think all cars do that when you turn the wheels because power steering is belt driven so it takes power from the engine to help you turn the wheels

 

Are you doing this while idle? Thats normal..

 

I got the issue resolved. But another one came up.

When the A/C is on, from being in gears to going back to neutral my car would shut off. The RPM would be really unsteady. When AC is not on, everything is solid.

So i guess there is something wrong with the AC lines, anyone have any hints?

 

^^ do you have cams?

 

Yeah, GSC exhaust cam on an evo 9.

 

The cams are obviously going to mess with your idle a little, you had it tuned after the cam install, correct? Might need them to adjust the tune a little, or try adjusting the idle on the throttle body...