P0172 Diagnostic Trouble Code Discussion for July 2018
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2009 Mercedes-Benz C350 4Matic 3.5L MIL Lamp on VIN: WDDGF87X19 This car is intermidentlly setting both codes P172 & 175, Takes a few 100 kms of driving before they set, Will show fuel trims of -20 to -25 in the freeze frame data when it sets, Usually only show -3-10 when we get it, We have installed a new oem mass... |
July 12, 2018 | |
| 2003 Honda Accord EX 3.0L MIL Lamp on VIN: 1HGCM66523 P0172: Fuel System Too Rich (Bank 1). First off, thanks you for your time. Ok, vehicle came in with rich codes, checked map,1.18 volts, a little higher than expected, first checked basics, valve timing, spot on, compression 240 psi on all cylinders, checked valve clearance, exhaust valves a li... |
July 19, 2018 |
