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Old 01-16-2003, 10:04 AM
Potomac Pat Potomac Pat is offline
Potomac German Auto
 
Join Date: Mar 2002
Location: Frederick, MD
Posts: 407
Thumbs up Coolant temp sensor (CIS/EZL)

I think I may have finally figured out what is plaguing my car.

I was working on the 16-vlv last night down @ RC Imports & was trying to troubleshoot where my power loss & sporadic start problem are coming from.

Here's my question. On the coolant temp sensor for the 16-vlv has two leads. When the leads are pulled during idle the car should stumble & the idle should act weird.

When I pull mine the idle stays constant. I looked at the schematics for these leads. Both green wires, one w/ a red trace & the other black. Apparently there are four (X48) diodes soldered in somewhere on these wires. I am assuning that one is the R/16 and the other three I am unsure of...

With a failed diode in line would it be possible to be getting feedback through the diode which in turn would cause incorrect signals to each unit?
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