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Power Strokes
7.3 Aftermarket
Weird HPOP pressure problem
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[QUOTE="TARM, post: 118249, member: 578"] What I meant by pressure spike was not to infer something out of the norm but just when you go WOT hard and quick you basically are slamming the IPR closed to bring pressure up and it you have something going funky with the pop off valve it could be some how leaking or allow bypass which is dumping oil. That compared to rolling into it where things come up gentle comparatively. That was just something that popped into my head when I was thinking about the issues. Obviously if your HPOP ICP is way low compared to what you are calling for in the tune and you have fueling off boost I would fully expect it to smoke like a pig and fall on its face. The first thing I would do is swap in know good sensors and maybe the ICP. See what you get. If its still in the crapper why not swap the two HPOPS and run it. That should answer it or greatly narrow it down. [/QUOTE]
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