Hey on my 8 my idle sucks

I have full bolt ons including 272 kelford a.

When I roll into neutral the car stumbles to 500 rpm and sometimes dies and sometimes recovers.

I replaced my iac with a used one with no luck so I may buy a new one but my tuner also said I may have shorter the ecu as well?

Is that possible?

Anthony

 

Bump?

 

I have the same issue, but it's intermittent. Did you find a fix?

 

Did you check for boost leaks? Also check the TB could be leaking seals.

 

You may need to adjust the idle screw on the throttle body. This will compensate for more air flow through the engine. I doubt the ecu is shorted. It either wouldnt idle or set codes. Boost leaks will also cause this problem as well. Is your BOV recirculated or vent to atmosphere?

 

We've got most of it sorted out. He had several issues with his idle tune.

The main issue OP is having now is the fuel pump re-wire. It's over 60 psi at idle so it's going extremely rich after open loop and bogging it down. We're waiting on the Spoolin Up Plug and Play Highl Low Re-Wire kit.