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Message: [QUOTE="GRN250, post: 1562031, member: 11773"] The P2552 error cleared today without touching the FICM. The plugs are locked in place. I ran the KOEO test and it passed again and the Injector buzz test said it completed successfully but only three of the eight injectors actually buzzed this time; the other five injectors just clicked. The connections are tight with the locking clips in place and a new, OEM harness was installed when the heads/head studs were installed. Not sure what has changed but considering pulling the injectors and having them tested. I previously had the FICM repaired; could it have damaged the injectors prior to having it repaired? Still planning on checking the crank sensor wiring when I get some longer meter leads. Feel like I am chasing a moving target with the symptoms changing and previously passed tests failing when retested. Beginning to think there are multiple problems at hand. [/QUOTE]

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