Hi, i done with re-chip p30-000 jdm ecu, with b16a stock engine, got more fuel save, but idle up and down 7xx-1000 rpm, i try clean iacv, check vacum leak, but it alright.

The original basemap have 750 idle target, so i just follow old idle target in crome. what iac compensation for?

 

And, after car warm up, i run till 8000rpm, but after throttle off till 2xxx rmp and throttle down again, engine start stalling, i need to push break or play with steering the stall recover..what cause engine stall in gear 2,3,4,5?