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1998 Pontiac Trans Sport Montana 3.4L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 3/6/2008 8 Replies

This transport is testing me good, I like a challenge but not when we are busy. This 98 Transport montana has a code po172 system too rich bank 1 stored in memory. STFT -2 LTFT is -18 at idle @ 1200 rpm the STFT -14 LTFT -2 and above 1500 rpm STFT -2 LTFT -18....

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car Vehicle Data

1998 Pontiac Trans Sport Montana

VIN 1GMDX03EXW
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Minivan

Trouble Codes

172System too rich bank 1
Message Closed

car Vehicle Data

1998 Pontiac Trans Sport Montana

VIN 1GMDX03EXW
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Minivan

Trouble Codes

172System too rich bank 1