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1997 Mercury MOUNTAINEER 5.0L MIL Lamp on
THIS IS FOR YOU DRIVEABILITY NUTS. I KEEP GETTING LEAN BANK 1 AND 2 CODES=I CANT FIND ANY VACUUM LEAKS,REPROGRAMMED PCM,REPLACED MAF,VAPOR MANAGEMNET VALVE,CHECKED FUEL PRESSURE AND LEAKDOWN(GOOD)(40 PSI)=KEEP IN MIND THIS IS A 5.0L. CHECKED INJECTORS AND ...
FIX posted 8/9/1999
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Message Closed w/FIX
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Related Documents & Media 
| VIN | [No VIN Available] |
| Engine | 5.0 L / 8 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1997 Mercury MOUNTAINEER
| VIN | [No VIN Available] |
| Engine | 5.0 L / 8 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video