Date: Sat, 01 Jun 2002 09:06:48 GMT
From: "Mike" <>
Subject: Re: 94 900s - Runs rough with A/C on ?

If this were the problem, any idea what I could look for to fix it? The Hayes circuit diagram does show two wires labeled A/C going to the fuel injection ECU (I assume to tell it to do the boost). > Wild guess:- Cars with A/C tend to boost engine idle speed when > A/C is on. (After all, the power needed by the A/C has to come > from somewhere.) If your car's idle boost is not working right, > the load of the A/C slows the already slow-running engine -- in > your case towards a stall, by the sounds of it. Naturally, when > you tread on the accelerator, you automatically select a setting > that provides enough fuel to make up for the bad adjustment. > -- > Andrew Stephenson >

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