I bought the GTP Daytona 2000 with only 65k miles. I know the history of the car from 28k. All mods were done before that. It had a pulley (unknown size) till the supercharger needed to be replaced around 30k. The thermostat seems to be stuck open or doesnt have one (runs 160 or less while driving can get to 175 in traffic), so i plan to fix that. Could that be the issue with the code or is the sensor bad too?

I research the thermostat a bit and learned that it has an offset to it so the type i buy could be important. Do aftermarket ones work or should i go with the GM. I do plan to put a pulley on this summer.

I was wanting a Robertshaw or similar style as they have higher flow.

This car is so much fun to drive and i have learned so much from reading on this forum. Thanks for all the great detailed information!