Okay, just got done building my motor the other day and I have been taking a few little drives here and there. Problem is that it stalls on decel...When I start slowing down, and get to the point where it's brakes and clutch...the car stalls. Starts up immediately, no CEL's or anything like that. It's also stalling during idle after it's warmed up. Turbo timer can't get through the 2 minute cool down without the car stalling. I didn't have any problems like this at all before I rebuilt the motor.

Cp 9.0:1 pistons
Eagle rods
ARP headstuds
ACL bearings
Greddy kit
Uberdata

 

who did the map for the uberdata?

 

Did you switch versions of Uberdata? I've been having issues with this too, I cleaned out my IACV and FITV, then swapped out my TB gasket... it's somewhat fixed now, but the rpms still drop to 500 occasionally, then hop back up to 750.

Doesn't help you much, but it's all I have to offer.

 

I switched to the 1.7 beta program. I'm getting odd readings on the wideband while it's idling. It seems no matter how much fuel I add, I'm still getting 19-20afr at idle. I'm going to drop back to 1.66 and burn a new map. Maybe that's part of it.

 

i'm also having similar problems but only stalls on decel and AFTER boosting not on idle or no-boost decel. it's tuned using uberdate 1.7. it's driving me nuts..

did switching to 1.66 fix your problem?

 

I am also having similar problems but I am still currently running my stock ecu and injectors. It seems that whenever I disengage the clutch over 1500 rpms the car seems to just stall. it is also idling very low