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2000 Mercury Cougar 2.5L MIL Lamp on
We are ready to replace the cat when we raised the car up and got a surprise. There is no O2 sensor after the main converter, only after the pre-cats that are part of the exhaust manifold!! So, now, do we replace the pre-cat for bank one or the main converter ...
FIX posted 11/5/2007
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Message Closed w/FIX
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Related Documents & Media | VIN | 1ZWHT61L7Y |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2000 Mercury Cougar
| VIN | 1ZWHT61L7Y |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video