i finaly fixed my code 15, i was reading and artcale on here form like october of 2000 and fixed my car it was running really rich cause it was saying low temp at the cts. took my car for a drive and it pulled alot harder. it felt like i just like i put a 150 shot of nos on my car.

 

Wont this also make me have alot better gas mileage

 

Took the car for another drive today and it seem's like it is running cooler

 

I'd bet your MPG goes up. If the car is running badly it will typically use more gas.

What exactly did you fix?