irocbsa

I have no idea why this is happening. I have replaced my coolant temperature sensor for the third time now and the check engine light has come on once again throwing a code 15. The first two times I just replaced the sensor but this last time I replaced the
connector as well. It will be ok for a few weeks but then it will just go bad again. Its causing the engine to run really rich and making it hard to start. This is really starting to get on my nerves big time. Somebody please help!!!!!!!!!! Thanks.
bsa


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"If they do not run, Then they will die." - Stonewall Jackson

'87 IROC, 355 TPI,700R4, Trick Flow Heads, Comp Cam, Comp 1.6 Rockers, Lucas 23# injectors, Edelbrock headers, Flowmaster 3'' exhaust, gutted cat,
Mallory coil, Mallory HyFire IV ignition box, Mallory Sidewinder 8mm wires, Autolite platinum plugs, K&N filters, Transgo Performance Shift Kit, Corvette Servo, 2,000 Torque Converter

Kevin G

Man, I have never seen coolant temp sensors go bad like that. Thats wierd. The only thing left that I can think of is the wiring from the sensor to the ECM. Good luck finding the problem

Bill91Z

I am inclined to go with Kev on this one. Sounds very strange and never have I heard of someone going through 3 CTSs. Sounds like a short of some type. Check all wiring to the harness and ECM. other than that, I have no idea. For further electrical advice, check out the Electrical board and look for Tim Burgess, he's brilliant when it comes to this stuff.

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-Bill
1991 Z28, 305TPI, 5-speed,
AS&M ported & polished intake, AS&M polished LTRs, AS&M port matched plenum, TPIS 52mm TB, Richmond 3.73s, SSM SFCs, SLP LCAs, SLP panhard, ATR 3" exhaust, MSD 6al, Taylor 10mm wires, SLP PROM, and a host of other stuff.