[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index] RE: Thermo Time Switch => Cold Start Injector Question
Mark wrote: >My question is which thermo switch is used to activate the cold start >injector. It is triggered by the ECU. >On the coolant flange coming off of the head I have three: > o Single pin on top of flange. <==ISV? Yes >o Two connector on side of flange. <==Cooling fan/turbo after-run? Correct > o Multi-connector on the bottom of flange. <==Bunch of stuff? This is the sender for the temp gauge, as well as provides "engine cold" and "overheat" signals to the auto-check unit and A/C programmer. I remember reading somewhere that the "engine cold" signal is also used by ECU - anyone can confirm/deny? >Right below the coolant flange screwed in to the head I have a single >pin just like the one sitting on top of the coolant flange. What's >this one for? This is the main temp sensor for the ECU. >What about the unit screwed in to the bottom of the radiator right >below the lower hose? Radiator fan thermoswitch Aleksander Mierzwa Warsaw, Poland mailto:alex@matrix.com.pl 87 Audi 5000CS turbo (mine) 88 Renault Medallion wagon (mom's) 91 mountain bike (just in case both cars broke at the same time :-)
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