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What I am pointing out is that the water temperature sensor appears to provide signals for the management of both the engine and the air conditioning. If this is so a fault in the sensing and or a/c circuit when activated could possibly effect the ECU and engine.
Hence my reference to hot verses cold engine performance issues as possibly providing a clue as it is said that the fault is to some extent always present but exasparated when the a/c is activated. I can not see how load applied by the a/c could induce the symptoms described.
This is a suggestion only as I am unable to confirm the exact arrangement from the wiring diagrams I have. Beav would be the one to check with to confirm or reject the idea.
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Trevor, New Zealand.
As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! 
Last edited by Trevor; 07-27-2003 at 06:25 PM.
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