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Check Engine Codes

Tiny
JJSFTC
  • MEMBER
  • CADILLAC SEVILLE
I have a 1994 Cadillac Seville STS. I purchased it about w eek ago. IT has been dying on me while parked and driving. I hooked up a hand held computer and got these codes.

A.I.R. Management System Malfunction
DTC 49

I can't find what these mean. Can you tell me? When it dies I can usually let it sit about 15 minutes then it will start again. I think the problem is getting worse.
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Friday, November 16th, 2007 AT 2:57 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Air system is the air pump and any injection parts to the exhaust, it is a secondary system to burn unburned gases, If the pump freezes, or tubes rust out, code is set.
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Friday, November 16th, 2007 AT 4:44 PM
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
The A.I.R. Pump needs replacing and the diverter valve on the top of the back valve cover needs replacing for the 49 code, dont think this would cause a dieing prob just a ck engine lite. Any other codes?
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Friday, November 30th, 2007 AT 10:10 AM

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