I have a freind who installed a set of Jethot Headers on his 98 Z-28 recently...The install went very easy but he's having a problem with it throwing code P-0118..He replaced the sensor and it still shows the temprature sensor circuit high..

The coolant fans come on as soon as the car is started and once I clear the code within a few seconds it comes back on..Other then that code the engine is running fine..

If someone can throw some light on this we would really appreciate it very much...

 

Check all the wires running near the headers...

I've seen burnt wires on these cars after header installs cause all kinds of havoc.

 

Thanks John he called me awhile ago and found the problem in the plug..He fixed it and everything now seems to be OK...

Thanks Again