thermostat

[DaMoNe6969]

well normal operating temp is 180 degrees and its very possible that your engine reached 180 under a 160 degree thermostat.. But thats not always the case.. There are a lot of other factors that determine what temp your engine will run at.. every vehicle is different

[Chevyracincamaro]

im seriously not trying to start an arguement (just want to lay the ground work for a good ol fashioned debate): alright, does it have to reach temp and stay there or will it stay closed loop if it reaches 180 and drops to 170ish. when i ran the scanner it was the middle of the night in dec, a nice 18* outside. i cant say that the temp never got to 180 but i know for a fact that when the scanner was monitoring that the temp was 170.6 and the manifold temp was 44.9* and the A/F ratio was 14.7...