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Thread: idle problems with 1991 c1500
09-07-2012, 12:18 PM #1
- Join Date
- Sep 2012
idle problems with 1991 c1500
having problems with my 1991 c1500. it has a 350 in it. problems is it seems to skips/stutters when idling. when the truck starts to warm up when it happens the most. no problems as long as it is moving. problems started when i did some work on it.
this is what i did: changed spark plugs, wires, distr. cap, rotor, t.p.s., i.a.v., and new exhaust minus the cat.
i didn't put new cat. because the truck doesn't have go thru emission test here anymore. 95 and up are tested.
i think this might be by problem, plus the gas cap will not go on all the way. filler tube is rusty.
any clues anyone? is it possible to by-past the ecm for no cat.?
09-07-2012, 01:24 PM #2
I wonder if you need to adjust the tps to the correct position. Crossed wire? Did one of the plug gaps get closed accidently when installing them? Could have a lump of dirt on one of the plug electrodes that was accidently put there during install. Could have a partly stuck\clogged egr valve. Do a search of the forum and I am sure that you will find a how to on how to clean the egr. I would start by pulling the plugs back out and checking the gap
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