|
This could be nothing more than gauge error due to the temperature compensation board. This is a very common fault on 240 cars equipped with that device (as is your car) unless you have removed it and installed the necessary jumper.
It involves removing the cluster and following the relatively simple procedure outlined in the photos below. The jumper can be made of a short section of stranded lamp cord and pushed onto the correct pins on the circuit board (which you should be able to do with the temperature gauge in place). This is a procedure to eliminate the compensation board completely- do not reinstall it once the jumper is in place. The gauge will then give you true reading.
Randy
|