xceslimitd
New Member
Well, I'm not sure where to start. I finally had the timing belt replaced and took a look and cleaned the fast idle valve but my problem continues. Would have replaced it but it seems to be hard to come by. No PGM-FI staying on or even coming on intermittently. Rough idle after warm up. RPMs drop and it almost stalls repeatedly while at idle. Timing checked and out of specifications when advance vacuum hoses hooked up. With vehicle at idle, vacuum gauge connected on number 2 hose and it reads 15 right before it stalls. Tried same test on back of manifold and got some result. Retried test on front of manifold and that it jumped and dropped a few times before stalling out. All hoses look good. Still pliable with no cracks or splits. Any ideas?