P0172 Diagnostic Trouble Code Discussion for December 2004
Fuel System Rich (Bank 1)
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| 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 |
