When I bought my coupe (Z18XE) I had problems with the temp guage! It would sit coolest then heat up in traffic and overheat and bring the fans on and coolant warning light.
New water pump and thermostat later it was sitting in the middle and still overheating every so often but letting the fans cool it but leaving the coolant warning light on the dash!
Took it to a different mechanic (Albeit Jap specialist he knows his stuff!) and hes said that theres possibly a problem with the wiring or loom, or possibly ECU itself.
He is concerned the lack of pressure in the Air Con system too is aiding the problem so holding the car overnight to be gassed and pressurized tomorrow morning before checking the ECU pins again for problems
Questions I have
Anyone ever had this or a similar problem?
How much would I get a 2nd hand z18xe OBDII ECU for?
Will my car ever stop having problems.. lol