Re: Poor s/w ? - Saab Performance Bulletin Board - Saabnet.com
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Re: Poor s/w ?
Posted by Tapani (more from Tapani) on Wed, 17 Apr 2002 01:26:22
In Reply to: Poor s/w ?, Dr Boost, Tue, 16 Apr 2002 10:48:15
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Thanks, yes - the s/w is always a possibility. The strange thing is, though, that the hesitation is not always there. I get clean pulls too. If I first ease off a bit letting the revs dip (in second) to 2000 rpm and then floor it I get a clean pull almost every time. If I hit the pedal immediately when I shift to second I get the dip again almost every time. So could be fuel starvation and lean misfire? I have a new fuel pump, the filter was replaced 20.000 miles ago (I'll get a new one today) and the plugs have only a few thousand miles.
As I told you the boost level stays stable through the dip. Could it still be knock and the ECU is retarding the igntition timing? I guess a TECH2 would tell me if the knock sensing is activated.
Regards from Finland,
Tapani
posted by 193.110.3...
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