THE ENGINE LIGHT HAS COME ON AND IT TESTED OUT ...

  • Tiny
  • Anonymous
  • 2002 SAAB 9-5
  • 145,000 miles

The engine light has come on and it tested out that the mass airflow sensor was at fault. I've replaced it and reset the code and it comes back on again. Any suggestions?

Wednesday, March 6th, 2013 AT 3:32 PM

5 Replies

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

What was the fault exactly?

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Wednesday, March 6th, 2013 AT 3:37 PM
  • Tiny
  • Chuckobar
  • Member

I'll have to go hook it back up again to get the nubers, but what I do remember is, it went to the mass airflow sensor.I'll get back with you on that.

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Saturday, March 9th, 2013 AT 8:15 PM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

If the air mass sensor is working but not in the range of normal then you might have a vacuum leak somewhere.

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Saturday, March 9th, 2013 AT 11:25 PM
  • Tiny
  • Chuckobar
  • Member

I know most vacuum lines are fairly small but where should I look?

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Sunday, March 10th, 2013 AT 8:54 PM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

I use brake clean, spray it around and see if you can get the idle to pick up, or a smoke machine is good too.

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Monday, March 11th, 2013 AT 12:00 AM

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