Date: Sun, 18 May 2003 22:38:41 GMT From: Paul Halliday <pjghnopsamyonder.co.uk> Subject: Re: Auxiliary Air Valve Questions
in article 3ec7daf4$0$76761$1b62eedfnopsam.wanadoo.nl, Johan Beikes at j.beikesnopsamdoo.nl wrote on 18/05/2003 20:06: > Hi paul, > > As said earlier, depending on temp of the switch, the injector will be > activated longer or shorter, or not at all (over 45 C). Indeed, above about > 45 C, the switch should be open. > > It can't be repaired, as it is not merely a sender; it actually controls the > duration of the coldstart injection. My 900 T8 also has a defective thermo > time switch. I didn't bother to replace it (yet). I have simply disconnected > the switch. In these weather conditions, it is not a real problem. It starts > getting serious again in fall, where temperatures will drop to 5 - 10 C. That really clarifies it. Thanks. I tried messing with the EGR system today (see the other advice in the thread), but it made no difference. That's a good thing, since it really narrows down where the problem could be. I'll remove the electrics and see how it runs tomorrow. The car is due for a good run to work and left standing for about 7 hours when I most notice the problem. You say that a short/continuous connection will fire the injector too much, especially when cranking - this sounds right. I'll let the group know what happens. Not repairable then? I'm sure my garage can give me a suitable replacement. Paul 1989 900 Turbo S http://saab.go.dyndns.org/