Temp gauge problems

[HUMTECH]

No way that i know of to make this work. It may be possible through custom programming but not sure. One thing you could do is buy an inexpensive code reader and leave it plugged into the data link connector, when the code sets just clear it.

[franke08]

Ok, if there is no other way I have to live with this problem. But there is one thing that I can not understand: When I shut down the engine after driving and I come back 1h later for driving again, the ect is also high, but no error is coming. Is there also a comparing of ect and ait, or "knows" the pcm that the engine was running one hour before? Maybe I could start the engine, then shut down and start again. Aftermarket preheaters are very common in europa, but it seems that I am the only one with this problem. Its also cold in Canada, do you also use preheater-systems?

[HUMTECH]

The pcm has an internal clock that knows how much time has elapsed since it was shut down and calculates accordingly. Yes its cold here but i have not seen or had any experience with preheaters other than in diesels. Most here just use a remote start and warm it up that way.