Saturn Repair Problems? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
You can have the latest calibration installed at any shop with a J box and a subscription to TIS. It should cost 1 hour of labor.
Reprogramming the computer will not stop this code if the stat is stuck open, changing the stat is required.
Please let me know how i can help you with this
You will certainly use more fuel if it is running in open loop and should feel less power.
The computer depends on this change in temperature to determine closed loop operation so you should get it fixed as soon as you can. A stat that sticks open can also close without warning and might stick there overheating the engine.