Quote:
Originally Posted by rainman
91*C =195*F this is the stock OEM specified thermostat. Some aftermarket thermostats open at 85*C or even 80*C and leads to excessive fuel use as the computer ignores the O2 sensor untill the engine is warm enough (90*C), so the early opening stops the engine reaching efficient operating temp.
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This is a pretty common statement .....
Since you lean towards that concept as well ... can you confirm the actual temperature stated
is when the system changes from open loop to closed loop ... or are you only going by what you read on somebodies website ???
Also ... when does this excessive fuel use occur ... at idle whilst warming up or whilst driving ???
Seems to be a few differing thoughts on various forums and some
facts would be good to perhaps have in a thread here.