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Power Strokes
7.3 Tech
IPR or ICP going bad?
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[QUOTE="Brickman, post: 1081541, member: 14965"] No way to check fuel pressure under load and I will need to order a gauge for that. I will start pulling the top apart so I can pull the VC's. I don't have any good diesel shops close by and the local dealer is not recommended from past experience. It seems like it takes a while for the ICP to build enough pressure to start. Once the truck starts it runs at a really high idle for about 2 - 3 seconds and then calms down. The new IPR made it run much smoother but still had the miss. I looked at the AE graphs and from what I can remember the stumbles are where the ICP voltage drops off and then back. It is just a little drop in the graph but it is when the truck misses. I am also going to pull the chip and see what that does. One less more thing to eliminate if the problem is still there. And this is a long shot - but would a bad pedal sensor cause symptoms like this. I installed a new pedal in June as I was loosing the pedal. It seemed to fix things for a couple of weeks and then the missing issues reappeared. [/QUOTE]
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