2003 Pontiac Montana 3.4L MIL Lamp on
This van came in with a check engine light on. P0171 stored along with an oil pressure switch code (can't remember the code)Tested for vac. leaks none found. Oxygen sensors read normal. Reset fuel trim and LT trim numbers begin to climb to 20% right away.
Summary posted 7/27/2011
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Vehicle Data2003 Pontiac Montana
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2003 Pontiac Montana
VIN | 1GMDU23E83 |
Engine | 3.4 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | After Several Drive Cycles |
Misc. | P0171 Lean Bank 1 |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |