Re: Almost impossible to start when cold - Saab 900 Bulletin Board - Saabnet.com
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Re: Almost impossible to start when cold
Posted by blue87 [Email] (more from blue87) on Sun, 2 Aug 2015 07:59:12
In Reply to: Almost impossible to start when cold, lee, Sun, 2 Aug 2015 07:08:36
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86 8-valve, that's a CIS system, right?
Problems like this on mechanical injection were commonly caused by a bad warmup regulator, a cold-start valve that wasn't firing correctly, or a pressure accumulator that had gone bad. Or some combination of any of these.
A true hunt for the problem might require a fuel-pressure gauge attached to the fuel system up front and then recording pressure readings when the car is cold and warmed up.
I haven't dug through the CIS info on the 900 bulletin board in a long long time but there's probably a lot of info in here. Also, you might check out the hard-start topic in the 99 forum (for years 75-80) for info beyond the 900 forum.
posted by 24.205.85...
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