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2001 Cadillac DeVille 4.6L MIL Lamp on
This car ever so often shows #420 code. Has had three cat. converters put on it. The code disappears each time afterwords. No set time. Last one was about a year ago. No other codes. All cats. have been aftermarket. The first one was in Canada. I would go O.E....
FIX posted 4/17/2007
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Message Closed w/FIX
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27 Replies Received
27 Replies Received
Related Documents & Media | VIN | 1G6KD54Y31 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| 420 | catalyst efficiency |
Message Closed w/FIX
Vehicle Data
2001 Cadillac DeVille
| VIN | 1G6KD54Y31 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| 420 | catalyst efficiency |
Video