Re: acceleration & 5th injector - Saab 900 Bulletin Board - Saabnet.com
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Re: acceleration & 5th injector
Posted by Doug S [Email] (more from Doug S) on Tue, 10 Oct 2000 18:11:29
In Reply to: Re: acceleration & 5th injector, Mike M, Denmark, Tue, 10 Oct 2000 15:47:37
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That "5th injector" in the inlet manifold is the cold start valve. It fires for 2 or 3 seconds to help start a cold engine.
Bad warm up on my car was caused by the "warm up regulator" not the cold start valve. The warm up regulator is an expensive and tricky bit of Bosch engineering. It alters fuel pressure at the fuel distributor to admit more fuel (richen mixture) during warm up. I've tried used ones but reliability is spotty. I hear you can buy rebuilt and save $.
BTW, my '86 900 8v I'm sure will do over 100mph.
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