USAF_RT

Anyone with suggestions?

It seems to idle just fine in the driveway, but if I go and drive it...it will stumble a bit once I let off the gas...in other words...driving at 2000 rpm, letting off the gas the car will drop to 300-500rpm before catching itself. Sometimes it will even stall! Keep in mind, I am not going into boost at all.

Couple of notes:
-USDM ECU
-Stock MAF Sensor
-Non-Recirculated BOV (TiAL)
-Idle Air Control Valve - Routed back to intake pipe w/ 3/4" heater hose

Thoughts?

I am about to go back to the JDM ECU with the MAP sensor only setup just to get myself too and from work, but then the car doesn't have A/C with that ECU...and Florida is WARM.

Sean

evileagle

The BOV is your problem...it needs to recirculate. The ecu takes that air into account and when you dont have it hooked back into the intake, well your car runs like **** and stalls.

Either 1, get your bov to recirculate or 2, get a new bov.

hope this helps.