My o2 sensor was replaced at 96k. Working spare parts are always a good thing to have though. At least it was quick and easy to change. I picked up a can of the CRC MAF cleaner yesterday. I will clean the MAFs on all of my fuel injected cars this weekend and see what happens. As for the pins, I was refering to pin 14 in the X11 connector which faintly lights the home built sw/led when stuck in that pin. I will check the voltage as soon as I borrow a digital meter. Thanks again

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Will
94 E420
82 300DT
77 F250 4x4 429 Cobra Jet
69 Thunderbird 429 Thunder Jet
92 Mitsubishi Galant VR-4