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Message: [QUOTE="6speedsd, post: 613137, member: 1242"] So, just pulled the cover off the ficm and checked voltages, just for the hell of it. Key on, 38V! I checked that a few months ago when the truck first started running rough, and they were all good. Now all of a sudden it's 38V. Didn't even try to crank it. Didn't see the point. If it's low with key on, it's low everywhere else. That could be why I kept getting crazy random readings during the buzz tests. Time to break out the solder gun! Answer me this though. I understand a weak ficm will cause injector codes and rough running. But why does this thing start right up without a hitch if I have it plugged in, or after its up to op temps? Shouldn't it act the same either way with a weak one? [/QUOTE]

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