Sway500
05-16-2008, 07:34 AM
Ok guys I thought I had faulty spark plugs when I replaced my spark plugs and they all fouled out so I replaced the plugs that fouled out (gas fouled) and replaced the air filter because it had not been cleaned or replaced since I did my swap (98 SR20DET Blacktop) in July 04. When I crank my car up the engine starts up fine, but as soon as it is about to idle at the regular idle RPM it starts to cut out like there is a vacuum leak. The idle jumps up and down. I checked all of the vaccum lines for leaks and everything seems to be fine. What should I check next? Ignitor chip, O2 sensor.....? I appreciate all of the help. The motor is stock with hks actuator @ 9psi, 3inch dp and exhaust, intake filter, and SMIC.