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88 mustang gt What ive got: Cobra uppr & lower shorty headers Gt40 heads Fender CAI 19lbs injecters Fuel adj regulator (40psi) All new egr assembly (evp sensor/egr valve/o2 sensor) Problem: idles fine, but im pulling code 34 on key on engine off and 34, 94 & 44 when key on engine running. I...

Just got finished putting some upgrades on my 88gt. I have had a bit of a hard time getting idle just right. Went through the entire checklist and everything looks good. A friend who knows quite a bit about fox's suggested I get my computer tuned. Not sure if I should go the dyno route or do...

Hey guys, I know there are similar threads out there but every set up is different so I decided after much research to start this one and get your thoughts.. I have 88 mustang gt. Mods so far are: mass air/a9L install (year ago) cobra upper/lower intake GT40 heads 65mm TB 73mm Mass...

Hey guys, I did some searches and came up empty so I decided to ask my questions here in hopes that someone out there is running a 93 cobra or have done similar upgrades. 1. I bolted on my gt40 heads and my original spark plugs dont fit. I take it the spark plugs for the gt40s are different...

alright guys, i spent the last hour looking this up here with no luck (i think my issue may be a little unique), so here goes... my car: 1988 5.0 speed density car that i have been wanting to convert to maf. A mechanic i know told me he had everything i need so i bought from him 1 a9p...