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2001 SAAB 9-5 check engine light

Tiny
WILLIAMASTA
  • MEMBER
  • 2001 SAAB 9-5
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 158,000 MILES
Check engine light indicated p1100 code. I replaced mass air flow sensor but light came back on. When I use turbo in the yellow the car bucks. Could it be an air filter aor another sensor? Or is the turbo failing?
Tuesday, December 29th, 2009 AT 10:38 AM

1 Reply

Tiny
MNTHNY4
  • MECHANIC
  • 612 POSTS
OK check if u have a loose vacuum hose, look for a valve mounted to firewall with a vacuum hose coming from turbo bypass valve, look between intake manifold & brake booster assembly valve is mounted on firewall there, also get turbo bypass valve vacuum tested, check if it holds pressure, if it does it is good. Post back after u check.
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Tuesday, December 29th, 2009 AT 8:19 PM

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