Quote:
Originally Posted by beppomarx
im a subie newbie, but if increasing revs seems to cool the car more, it sounds like a coolant flow issue. A/C will always get turned off upon the ecu finding an overheat condition. again i dont know about this engine in great detail but working at a volkswagen dealership, many of our cars have plastic vanes on the water pump which go bad quite often and reduce flow, giving exactly the same situation you describe.
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Sounds logical, but this logic doesn't apply.
Increasing the rpm also increases the heat output from the engine and there are no plastic vanes.
The ecu is not related to the safety switch for increase high side pressure.
Do you have a coolant loss?
Inquiring minds want to know
Keith