P0088 Diagnostic Trouble Code Discussion for November 2020
Fuel Rail Pressure Too High
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| Help Request | Posted | |
| 2008 GMC Sierra 2500 HD WT 6.6L MIL Lamp on VIN: 1GTHK23668 P0088: FUEL pressure too low. 1st time vehicle came in it set a P0087 fuel pressure too low. desired fuel pressure 160mpa actual fuel pressure 80mpa. high pressure relief valve replaced at another shop. did injector fuel rate return rate test and found injectors 6 7 8 returning 1 ml ov... |
November 20, 2020 |
