Fuel Line? Idle? Engine? Need help.

1991 GEO STORM
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KATE55K
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The start of this saga began one day when I was driving. While on the highway my car began to die only to recover after about 3 seconds. It continued to do so for several weeks. Then I noticed that my car would die completely at SOME stoplights. My car would have a harder time uphills and it seemed to get worse as it would stall while driving more often and added acceleration no longer seemed to fix it. During this month I replaced the spark plugs, the plug wires, cap and router, checked the fuel line, fuel filter and IAC valve. Almost immediately after replacing the IAC my car will no longer start. It just turns over. I have no idea how this is related and replacing the old IAC didn't make the problem any better. Any ideas on where to go from here? I need to car to run ASAP for work.
Apr 11, 2013 at 8:28 PM
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HMAC300
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scan for codes and check fuel pressure first. sounds like either the cat converter has failed not allowing the engine to breathe.

Apr 12, 2013 at 5:41 AM