P0172 Diagnostic Trouble Code Discussion for June 2017
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2005 Land Rover LR3 SE 4.4L MIL Lamp on VIN: SALAA25415 P0172: System Too Rich Bank 1. ... return intermittently. I am the second technician in the shop to work on this vehicle with the same codes all at different intervals starting November of last year. First time in the mass air flow was found to be bad and code stayed off for about 6 months,... |
June 21, 2017 | |
| 1998 Chevrolet K2500 Cheyenne 5.7L Excessive Emissions, Poor Fuel Economy VIN: 1GCGK29R3W P0172: Fuel Trim System Rich (Bank 1). vehicle has low power, has rich condition both banks, IAT would drop out, disconnected the MAF and the problem with the IAT went away. Replaced the MAF no more problem with the IAT. Checked the cam crank signal on the scope, looks good, checked the coil primar... |
June 27, 2017 |
