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Message: [QUOTE="lukesdiesel, post: 280904, member: 2177"] I just installed a PHP 6pos Chip on my 99.5 F-250 but seem to be having a few issues. It seems my truck already had a tuner installed or a custom tune installed on the PCM when I bought it. I installed my PHP chip yesterday but now the truck seems to be lacking low end power and throttle response. I have also noticed that when getting on the throttle when I let off to change gears (6spd) the rpms don't fall like they did without the chip. They seem to hang for just an instant. I had the truck connected to scantool last week to check HPOP Pressure and i have just under 500psi I start up and 2700-2800 at WOT. Does this sound like a Chip Burn issues? [/QUOTE]

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