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cold start

Hi everyone,

My sincere thanks to Orin for supplying the schematics of the cold start
driver. I've checked and it seems OK. But there's another confusion:
according to the wiring in my Bentley there should be a thermoswitch
feeding into the ISV controller ( 86 5kcst), but I couldn't locate one. The
only thing alike is a four wire electronic switch under the upper radiator
hose, but it is reffered to as some thermoprotection of the wastegate.
Could it be multifunctional and how to can I test it? Any input on the
subject is appreciated.


86 5kcst 120k(high idle stalls upon warmup)
87 5k 150k(a really raliable car)