Check Engine Codes

CADILLAC SEVILLE
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JJSFTC
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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.
Nov 16, 2007 at 6:57 AM
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MERLIN2021
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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...
Nov 16, 2007 at 8:44 AM
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BUZZSAW
  • ✓Experienced Mechanic
  • 1,198 POSTS
[quote:2db80bf91d="jjsftc"]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.[/quote:2db80bf91d]

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?
Nov 30, 2007 at 2:10 AM
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