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Re: Testing Direct Injection High Pressure fuel pump - Runs Rich
Posted to Technical Discussion Forum on 9/5/2020 11 Replies

Scott, everyone one of them that I diagnosed lately (yes much gas in oil) had a bad pig tail connection on the high pressure pump. One of them, in addition to the bad pigtail, had faulty high pressure sensor that is mounted on the fuel rail. Wait, hold on. Bot... Login to read more.

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