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Power Strokes
7.3 Tech
IDM,PCM Failure?
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[QUOTE="Dirtclod, post: 1499481, member: 20061"] Just for the hell of it I thought I'd do a continuity test with harness removed from the valve cover. In other words I checked the harness out of the engine on the work table. I read ohms between the center pin (ground) and each injector pin and also the the glow plug pins. I was reading those numbers that I was reading at first test with it in the valve cover. The connector was oily and had dirt or grime inside the connector on the outside plug. I could tell the grime was connecting the pins that were reading 12.5. After cleaning it with Cecil electrical cleaner everything read zero. I put the harness back in the truck plugged it back up and 2.9 all 4. In fact I could've just cleaned the connector and snapped it back in and it would've been fine. I'm going to try this on the passengers side and then recheck my readings. At this point I see no reasons why injectors are bad. The truck has fine except for lower boost than it used to but the wheel is bout shot. So it's time to fix that and do those upipes. I haven't had the chance to go get an iPad for diagnostic tool and haven't checked anything with a scan tool yet. But I'm going to get a mechanic over here before I button it all up to check codes. And do buzz test. [/QUOTE]
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