Date: Tue, 02 May 2006 19:02:09 GMT
From: Paul Halliday <pjghnospamyonder.co.uk>
Subject: Re: 1986 900 warm start running rich...


in article 4bpm1nF10oi4aU1nospamvidual.net, Dave Hinz at DaveHinznospamcop.net wrote on 02/05/2006 19:17: > I've got an '86 900, 2.0 liter naturally aspirated. When I have a warm > start situation (car sitting for a short time, hasn't cooled down > fully), it runs very rich when I first start out. > > What I'm thinking, is that the cold start injector is opening, as if the > car was actually cold, and that there's probably a temperature sensor > which is giving the system bad information. Does this make sense? If > so, where is that sensor? (This car has CIS injection). The "thermo-time switch"? It's either between cylinders 2&3 in the head, or in the block under the distributor. That instructs the cold start injector to run for a short which during warm up, as well as other parts of the CIS system. Paul 1989 900 Turbo S http://saab.go.dyndns.org/

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