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i just checked compression today all cylinders are at close to 120 which is low i know but it idles fine and runs fine except for the a/f ratio issue. i checked the fuel pressure its at 42psi when the system is charged at the key on position, 42psi at idle, and 52psi at the highest i seen under a load "driving" at about 60-70mph in 4th gear i couldnt find any thing wrong that would cause this. i also put back my oem coil packs it did the same shit! turned off the tru boost so it runs on waste gate spring pressure and still no change i dont know what else to check??? aqny ideas???
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