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Message: [QUOTE="maplemale, post: 1153107, member: 17366"] That is indeed a great resource! After reading it a while back, I had called and asked Unlimited Diesel if it was possible there were bad poppet valves as the symptoms seem to fit. But, it seemed unlikely since it's every injector and not just one. Regardless, I'm to the point I may try different injectors. I just called gearhead a few minutes ago. Talked to Larz again and told him where I'm at. He's sending me a tester tune which I'll install first. I'll try another ice cold start hopefully Thur. morning when it's supposed to be 15 degrees out. Last ditch effort on tuning before I go completely crazy and pull injectors to inspect them / have them tested / switched out etc. Ya know... another thing which I just told Larz. It seems like my HPOP is running slightly lower on pressure by about 100-200 psi with these injectors vs. stock. At idle, I'm at 475 psi and WOT is usually around 2900. Used to be more like 550 psi and 3100. Though, admittedly WOT is harder to test now with all the upgrades since I end at about 100 MPH! :pimp: But shouldn't I get higher HPOP numbers if anything since single shots are more efficient? [/QUOTE]

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