Date: Tue, 7 Sep 1999 09:36:27 -0400 From: "Eric Law" <elawxnospamxnopsamecsxnospamx.com> Subject: Re: Turbo pressure switch
Alan, (This is written using info for a left-hand-drive car. If yours is RHD, things may be reversed...?) You're going to have to remove the knee-pad under the dash. Then, look under the dash on the left side of the car (as viewed from the rear). Look for a gray plastic thing, about 1.5" diameter, with two hoses on one side, and two wires on the other. Don't confuse this with the APC pressure sensor, which is metal and only has one hose. On the side with the wires, right in the center, there's a flathead screw. If I recall correctly, turning the screw clockwise increases the cutout pressure. Eric Law Alan Buckingham <alanbnopsamb.swinternet.co.uk> wrote in message news:7qrnlc$npo$1nopsam4.svr.pol.co.uk... > I have a 1989 900 Turbo 8V to which I have just replaced the old Garrett > turbo with a Mitsubishi one from a 16V turbo. This turbo now gives much > more boost than before, so much so in fact, that the turbo pressure switch > frequently cuts in and stops the fuel supply (i.e. it 'dumps'). I'm > reluctant to lower the maximum boost and would rather increase the pressure > switch actuating pressure instead so that it cuts in at a slightly higher > pressure. I note from the Haynes manual that 8V pressure switches actuate > at 0.95 bars while 16Vs actuate at 1.10 bars. Can I increase the actuating > pressure to the 16v level? If so, how do I do it and where is the pressure > switch located? > > Thank you so much in advance, > > Alan Buckingham > > >
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