Idle Surging Problem..Any thoughts...PLEASE

[nismodave]

Well I tightened up my WG actuator and it seemed to solve my low boost problem so far.

I went to the track and ran it down the 1/4 mile. when I hit 4th the car fell flat on its face.

When I came down the road the car had a surging idle. I checked the Vac lines and Intercooler pipes. I also tried another Z32 maf that I have, no help.

I guessing the Idler Air Controll Valve or the Throttle position Sensor has gone bad.

But I wonder how either of those could cause the car to fall flat.

Any opinions from you guys would help . Thanks In Advance!!!

Sr20 det blacktop from 180sx Z32 maf Blitz intercooler Blitz Blow off valve Greddy intake Blitz LM air filter Garrett GT25/40 .86 ar turbo 740cc Injectors HKS Step 2 cams Tubular manifold 3'' Blitz Stainless steel downpipe 5zigen cat-back exhaust Greddy O2 housing Greddy head gasket ARP head studs Tomei rocker arm stoppers Nismo Fuel pressure regulator Enthalpy custom ecu Blitz dual sbc-r boost control Blitz Turbo timer Apexi super afc

[IanS]

spark plugs, you may have fried an elctrode, check em

[Grambos13]

did you ever figure out what this was? please let me know I have a smilar problem

[Grambos13]

not positive but I think I found my problem. I went through my wiring harness the other day and found up by the battery try that my iacv wire was not even connected. I'll let you guys know after I get my harness back in.

[afmafia]

its doesnt metter if thats plugged in my is shot so i unplugged it it still runs fine

[Grambos13]

thanks good to know