I have replaced my coolant emp sensor 3 times in the past 12 months. About every 12 weeks I get a code 15. I don't know what is going on. I soldered the connections on the new harness and applied dielectric grease to the sensor plug. This is really starting to get on my nerves. Does the cts wire directly to the ECM harness. Should I replace the entire length of the wire? Could the failures be caused by old, dirty coolant? Thanks.
bsa

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

'87 IROC, 355 TPI, Converted to SD, 700R4, B&M Megashifter, 3.42, Trick Flow Twisted Wedge 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 Stall Torque Converter

[This message has been edited by irocbsa (edited January 23, 2001).]

 

Er... just curious, what temp therm. are you running, and when was it last replaced?

------------------
"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."

-Thomas Jefferson

 

180* and it was replaced 3 weeks ago. Anyone.......?

 

All the cts is, is a resistor. Check voltage at the pin out for the cts on the back of the ecm and see what it reads when you get the code 15. I dobt it is a sensor problem, sounds like bad wiring. I have a book with what the reading should be, but im at school. SO email me and ill send you the scale and which pin out it is.