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2003 Toyota Tacoma Pre Runner 3.4L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
Posted to Asian Driveability on 1/4/2013 12 Replies

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...

12 Replies Received (View Replies)

  Related Documents & Media  2003 Toyota Tacoma Pre Runner

 
Message Closed w/FIX

car Vehicle Data

2003 Toyota Tacoma Pre Runner

VIN [No VIN Available]
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursWhen Heading to Higher Elevations

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/FIX

car Vehicle Data

2003 Toyota Tacoma Pre Runner

VIN [No VIN Available]
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursWhen Heading to Higher Elevations

Trouble Codes

P0171Fuel System Too Lean (Bank 1)