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Engine stalls at higher RPMs

Tiny
WILSONM5
  • MEMBER
  • 1999 SAAB 9-3
  • FWD
  • AUTOMATIC
  • 129,000 MILES
I have a 1999 Saab 9-3 and it runs fine until I get to higher RPMS such as passing. It will lose power and when I back off the throttle it recovers. Last summer I was getting a check engine light with a camshaft sensor code but haven't gotten the light since then. I think this started around the same time but that may be coincidence.
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Thursday, February 17th, 2011 AT 9:00 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This could be a fuel pressure issue so I would suggest starting with checking the fuel pressure when this is acting up and make sure that the pressure is not dropping.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

If it is not then most likely you have an issue in the ignition system. I would put my money on the ignition discharge module as this is what controls the delivery of the spark plus if you have had a cam sensor issue then that would be where I start.

I attached the info below on this and how to replace it. Please run through this and let us know if you have question on this.

Thanks
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Monday, August 16th, 2021 AT 7:44 PM

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