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Re: Hesitation at mid RPM a 90 SPG
Posted by RTSDan [Email] (more from RTSDan) on Tue, 9 Oct 2007 15:14:24
In Reply to: Hesitation at mid RPM a 90 SPG, Ruban H. Carter 1, Mon, 8 Oct 2007 11:28:45
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What is a a consistent measure? Where are you? Boost to about mid yellow range indicates base boost. A 1990 US spec SPG should easily boost right to the line between the yellow and red if not higher. when the car is idling and the hood is open, do you hear the APC solenoid chick when you step on the brake pedal? if not, search here for APC. (Check cruise control vacuum switch.) If it does, pull off the hose from the apc switch to the waste gate (above right side cooling fan, hose pointing toward passenger side fender.) does it boost now? No, check for stuck wastegate or bad turbo. Yes, check connector to apc box or bad apc box or? Hope this helps. Dan at Road Tested Saabs in Indianapolis
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