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1990 Cadillac DeVille 4.5L MIL Lamp on
I checked the whole system out, I test the air deverter valve, seems ok. I can make the deverter valve to open and close by using onboard computer. Air pump and check valve are brand new. Could it be cat. converter?anybody knows the solution,will be apreci...
FIX posted 2/23/2000
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Message Closed
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| VIN | [No VIN Available] |
| Engine | 4.5 L / 8 cyl |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
| Misc. | 2 Doors Fwd |
Trouble Codes
| 49 | air manegment system |
| E |
Message Closed
Vehicle Data
1990 Cadillac DeVille
| VIN | [No VIN Available] |
| Engine | 4.5 L / 8 cyl |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
| Misc. | 2 Doors Fwd |
Trouble Codes
| 49 | air manegment system |
| E |
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