Quote:
Originally Posted by Nakkas
Why?? If the car was designed to run at 195F, why lower it? It won't stop it from overheating if the cooling system is not up to scratch.. and the car will not run at the PCM programmed temp.
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Who says it was ONLY designed to run at 195" ??? ..... Cerainly not the little fella that listed the 180" thermostat in an XJ parts manual.
Why lower it .... ??? ......... Why use a bit of thicker wire than nescessary for the intended amperage load ???
And which PCM programmed temp are we talking about .....
The P0125 -6*c one that is too cold ?,
The -5*c one that wouldnt be too cold ?,
The 70*c warm up cycle trip definition temp in the FSM ?,
The temp everyone thinks is the operating temp just because its labelled on the hit & miss dashboard gauge ?,
Or maybe the 20*c that just happens to be the fluid temp - when the heated O2 sensors have reached their operating temp and trigger closed loop as long as you're in idle or cruise modes ?,
Cant imagine it would be a 92*c temp coz that temp reference doesnt exist in the FSM .... as a running temp.
Its all old hat Nakkas .... Been done to death before. Have a real good read of sections 14 & 25 in your FSM ... Even tho most temp data seems to have been censored out in the later editions - theres enough info in there to grasp the Fuel Injection system operation .... If you take the time ...... altho you should be swotting up on the V8 manual now.