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mpj76 · 10-10-2005, 10:57 AM

Don't know about the harness, but a vacuum leak will cause what you described. I removed my smog pump, pinched off the inlet at the H-pipe, and removed all the other plumbing. Car runs fine, no codes.

10-10-2005, 10:57 AM	#3
mpj76 Registered Member Join Date: Sep 2002 Posts: 158	Re: Pulled Codes.... Please Help Don't know about the harness, but a vacuum leak will cause what you described. I removed my smog pump, pinched off the inlet at the H-pipe, and removed all the other plumbing. Car runs fine, no codes. __________________ 91 Coupe: FMS 1 5/8 unqual shorty's, BBK off road X-pipe, Super Duty T5, Pro 5.0 short shifter, 2.73 rear, G3 alt, MSD coil, dist, no smog pump, oil cooler, 195K miles, 14 deg timing, 23 mpg city/29 mpg highway @ 65 mph.