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P0172 Diagnostic Trouble Code Discussion for December 2004

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1998 Lexus ES300 3.0L MIL Lamp on VIN: JT8BF28G7W
P0172: Fuel System Too Rich (Bank 1). Needs some help... please.. Mil on code p0172 rich bank one fuel trims both banks (long) negative -18 and -15%. Cleaned maf cleared code drove car but cant seem to get the trims in to the normal ranges fuel pressure is at 52 psi and pressure holds when pump is...
December 11, 2004
2000 Chevrolet K3500 7.4L MIL Lamp on VIN: 1GCHK34J6Y
P0172: Fuel Trim System Rich (Bank 1). This truck came in with a p0172 and p0175 and also a hard start on a hot soak of about 10 to 20 min. fuel pressure was dropping of slowly. Checked injectors and found four dripping. Replaced all 8 inj with new bosch inj from linder tech also replaced rhe fuel ...
December 30, 2004