i have a 97 b20b in my coupe running on ls ecu. when i start the car up from a cold start the car has a retarded idle..it drops and rise..drops and rise.... when after it starts to warm up it idles normal with a few smutters hear and there. when i accelerate alil the car wants to shut off...i can baby it but it still shuts off with juss babying it too.i juss putted on a fpr some i wont runn lean and this happens.any advice is well acceppted

 

Did it have a problem running too lean before? Is it boosted?

 

i wass runnin a bit lean b4 cuzz of the ls ecu and no its bone stock besides intake and headers

 

turn down the fuel on the regulator

 

im poss to be at 45 psi right?

 

try a new IAC sensor/solenoid thingy. behind the intake manifold. . the intake air control valve . . this will fix the idle and stutter problem

 

i had afeeling i should change dat..soo i guess thatll b my nex move