Date: Fri, 16 Jan 2004 22:24:20 -0000 From: "chris" <chrisnopsamail.com> Subject: Re: Cold Weather Dependability
.Paul Halliday" <pjghnopsamyonder.co.uk> wrote in message news:BC2DEFFE.CA9B%pjghnopsamyonder.co.uk... > in article bu9049$f5fhh$1nopsam52899.news.uni-berlin.de, Grunff at > grunffnopsam.com wrote on 16/01/2004 15:28: > > > GG wrote: > > > >> 8v > > > > This has the Bosch CIS. When the engine is cold, it uses an extra > > injector (the coldstart injector, the one with the blue plug) to > > introduce extra fuel. It knows when it's cold using the NTC temperature > > sensor (under the inlet manifold somewhere IIRC - it's been a while > > since I had an 8v). Poor cold drivability with CIS was one of it's few weaknesses, not just on saabs either... You can improve the situation, but if you start messing with mixtures you can bugger it up for warm running. Hesitation is usually caused by a faulty warm up regulator. A low idle is to be expected cold too, but check the auxillary air valve for function K-jet a very simple system and shouldn't take too much sorting to fix, but don't expect perfection when cold like modern injection systems.
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