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Hello Mr. Farr, the "cold start injector" is that also known as the "Temperature Sensor" or the "Thermo-Time Switch II ?" Were they right underneath the front side of the EFI plenum?
Are they in working order? Will they work on a 1988 22RE 4x4 Pickup? Chukki in Nashville, TN
Hi, parts came off a running engine- I changed to a standalone ecu so I no longer use this. You will have to go on RA and do your research and if there are numbers on these parts I can give you those if they are on the part. I don't know what group of years are compatible these are 1990ish. The cold start injector is a supplemental fuel injector that goes on the drivers side of the upper plenum behind the throttlebody. I believe it had it's own black temp sensor at the front of the lower intake by the thermostat beside the green ecu temp sensor.. That's all I can tell you.