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Re: new $65 C900. First problem: rough startup idle.
Posted by Saabjockey (more from Saabjockey) on Sat, 29 May 2004 12:27:39
In Reply to: new $65 C900. First problem: rough startup idle., iveand
[Profile/Gallery]
, Sat, 29 May 2004 11:20:44
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I have an '84 with 94K and have been fighting simular cold start battles. Assuming you've addressed the basics--plugs(NGK), aircleaner, fuel filter, cap/rotor/plug wires, timing, I would next check that the cold start injector and fuel warmer are working properly (don't ask me how to do it). Also there is a check valve that sits on top of the fuel pump that can go bad, which allows the fuel pressure to drop making it hard to start. I've finally gotten mine to run well when it's cold, but it still doesn't advance the idle speed when it first starts up. I've compensated by turning the idle up a little higher than normal (900rpm) which works reasonably well (it idles at 700rpm when it's cold). It is a mechanical fuel injection system which is known to be a little tempermental--you may not get it perfect. Sounds like a good deal on the car--you can't even buy a set of tires for $65.
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