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2003 Toyota Tacoma Pre Runner 3.4L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
This customers truck will illuminate the MIL and mileage will go from around 18 MPGs to about 10 MPG. Puffs of black smoke can be seen coming out of the tailpipe sometimes while this is happening. This is only when he travels north to higher elevations. Any ot...
FIX posted 1/20/2013
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | [No VIN Available] |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | When Heading to Higher Elevations |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
2003 Toyota Tacoma Pre Runner
| VIN | [No VIN Available] |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | When Heading to Higher Elevations |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Video