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Message: <blockquote data-quote="dubbsix" data-source="post: 545220" data-attributes="member: 11441">My 94GT is throwing me for a serious loop. When i bought it i noticed it had a weird idle stumple that seemed completely random. When i popped the hood i replaced:Plugs/wires, cap/rotor, new spark plugs, new air filter, clean the maf.I put a pressure gauge on the fuel rail and found that with the key on and the engine OFF the pressure was 37PSI with no bleed down. When i started the car the pressure dropped to 32PSI and went up everytime i goosed the throttle.Seems completely random, no codes and no part throttle or WOT performance issues. Has anyone experienced anything similar? My next steps are:Fuel filter replacement, try cleaning the IAC. HELP!</blockquote>