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I have a 00 f350 SD7.3 and am having a crap load of issues with getting it smoged. 1st I had s code PO673 GPR malfunction so I replaced the module and code went away. It erased the code but when I went to retest he now said it had failed again but now with PO475. I posted about that last month and tried to follow the advice but didn't get it figure out. So it's at a shop today and the dude says he replaced a sensor and harness and code was gone. I drove it for 15-20 miles and he said he hoped it would erase the code that just popped up about output shaft speed sensor and sudden and suddenly another code popped up about fuel injector pressure. Pressure or something like that.
Is this a common thing that happens when changing sensors? Also, the speed sensor on the tranny isn't there to plug in. I got a used tranny last year when mine went out so I don't have that sensor on the trans. Is there a way to bypass that harness with a resistor or something ???