Recent new owner of a 96 Geo tracker 16V 2door 4wd MT with 230k miles .
CEL is on for p0118 - Engine Coolant Temperature Circuit – High Input malfunction
Runs rough after warm up and dies at idle after warm up = rich condition
Also temp gauge at dash starts when cold , at half warm mark and one warmed up shows full / pegged HOT .
Live data with hand held scanner plugged into OBDII port shows -40 for coolant temps at all times .
Replaced both the CTS for ECU and the temp sensor for dash = no change
Tested the instrument cluster by unplugging the temp sensor for dash indicator while running = no change ( still indicates wrong temps )
Tested the new CTS with OHM meter ( pig tail unplugged ) = tested good ( 2.7 or something like that bone cold )
Tested the new CTS with OHM meter ( pig tail plugged in ) = tested at 1.75 or something like that, bone cold , at backside of pigtail.
My Q is .......
I think, I have a problem with the actual instrument cluster and Im wondering if the wiring for the CTS is looped into the cluster some how ?
CEL is on for p0118 - Engine Coolant Temperature Circuit – High Input malfunction
Runs rough after warm up and dies at idle after warm up = rich condition
Also temp gauge at dash starts when cold , at half warm mark and one warmed up shows full / pegged HOT .
Live data with hand held scanner plugged into OBDII port shows -40 for coolant temps at all times .
Replaced both the CTS for ECU and the temp sensor for dash = no change
Tested the instrument cluster by unplugging the temp sensor for dash indicator while running = no change ( still indicates wrong temps )
Tested the new CTS with OHM meter ( pig tail unplugged ) = tested good ( 2.7 or something like that bone cold )
Tested the new CTS with OHM meter ( pig tail plugged in ) = tested at 1.75 or something like that, bone cold , at backside of pigtail.
My Q is .......
I think, I have a problem with the actual instrument cluster and Im wondering if the wiring for the CTS is looped into the cluster some how ?