Date: Wed, 23 Jun 2004 11:16:39 -0400
Subject: Re: NG 900 S hesitation

Jody, Are you using high octane (i.e. knock resistant) gas? Lower octane gasoline in a Saab Turbo can provoke knocking, which in turn activates a built in knock sensor. Try premium gas. Bob Jody Burke wrote: > > I have a 1995 900S conv., 2.3l that is hesitating under wide open throttle, > even at low (2200) RPM. It will accelerate for about 3 seconds, then buck > sharply. The recent services performed by the dealer for the previous owner > to try to cure the problem were: new temp. sensor, new fuel pump. The > distributor is new as well as the wires and plugs. I have replaced the > thermostat (stuck open) and a few vacuum hoses that were cracked. The > rubber intake piece that attaches to the airflow meter and the intake is in > good shape. Any ideas as to what I should look at next? The check engine > light came on the last time it acted up, cutting off at idle. Thanks for > any help.

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