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930 turbo cold start problems. Takes 20 minutes to start cold after sitting for a couple of weeks. Once it warms up instant starts runs well. Help I'm new to the turbo. Engine replaced with 1983 turbo modified 450hp cold start valve? 1976 930
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Last edited by Cobrajohn; 01-24-2021 at 01:39 PM.
Reason: Mo
Visit the sticky for "why my car won't start" on the other P site, as well as the Turbo threads. There's a lot of info out there on symptoms similar to yours, just no one-liner panacea answer until you test your CIS fuel delivery bits - for a start. You may also like to add a few details on the modifications to your engine. Good luck!
You need to put fuel gauges on it and see what the pressures are doing to properly diagnose it... but some common and easily replaceable bit are... could be the fuel accumulator, could be the warm up regulator, could be a fuel pump, and also cold start valve could be suspect. Cold start valve can be easily checked so you should do that anyway. Accumulator is not that expensive an could be easily replaced. Warm up regulator can be rebuilt... google CIS flow tech. But you should have someone with a proper set of CIS gauges hook up to the car and see what it is doing as there could be any number of other issues contributing to your problem.
Good luck
I recently had this issue. Plugs were badly fouled and aux air regulator needed replaced. Winter was here so haven't driven the car after getting it back but runs well on the 2 starts and short drive I did do.
But as others said could be few things. Lots of pointers in above posts. Read here and in Pelican.
01-24-2021, 01:27 PM
No
