Date: Fri, 8 Sep 2000 12:54:29 +0200 From: bengurionnopsamde (ben gurion) Subject: Re: 900 SPG APC Gauge question
Julian Sweet <jsweetnopsamneering.ucsb.edu> wrote: > ... Should I expect the needle to be right at the > yellow/red boost gauge border under sustained maxium acceleration? Assuming your APC gauge isn't faulty (never heard of) your needle _should_ go to the y/r border. There are tons of reasons why this is not happening, and bosst/APC probs are common on classic 900s. There is a easy way to check if your turbo charger is ok: Dissconnect the right vacuum tube (looking fwd) from the solenoid valve, which is located on the upper right edge of the radiator ... its a little round thing with 3 vacuum lines and two electric lines connected to it. Now warm up the car, and do some hard accelleration, BUT: CAUTION ! Doing this, with the disabled APC means YOU are in control of the boost, so do it carefully and avoid shooting it into the red for too long or too often.... you'd fry your engine ! (its tempting, cause you sure never felt _such_ a kick before ;)) If your turbo is ok, the boost will go up fast and as high as you let it, and you can expect the problem in some device of the APC system. (btw always make sure you're using high octane fuel, or the knock sensor will always cut down your boost !) hth -- cu... ben <ICQ#88911102>
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