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Old 10-27-2009, 09:39 AM   #11 (permalink)
Tim the 2Lman
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Join Date: Aug 1999
Location: Coweta,OK,USA
Posts: 556
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With the signal as I've described from the ECM/PCM, yes about 400psi. If I operate the IPR simulating 100% then I get over 3000psi. That's why i'm trying to figure out what the signal should look like. If the signal is normal, then I would have to conclude that the hpop is weak. If the signal is not right (i.e. maybe it should go between 0-12vdc instead of 6-12vdc) then I need to be looking elsewhere. The wiring under the hood and under the dash has had some butching done to it so I don't want to rush off and spend big $$ on hpop and that not be the problem. There is only about 100-150psi difference between having the ipr plugged in and not having it plugged in. Hope this helps. Thanks
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Tim the 2Lman, '85 F350 2WD CC C6 basically stock 274K miles, '86 F350 reg cab flat-bed DRW 4-speed, '94 F350 powerstroke ZF-5 SRW long bed project soon to be daily driver, 217K miles.
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