posted 06/17/06 04:48 PM
If you REALLY want to get rid of it, you can bypass IC110 for the EGR voltage. I figured it out sometime back, but found out later that a MAP sensor's output voltage isn't affected by the bias, so I never really advertised it:
remove jumpers J101 and J105, and connect a small jumper between pins 5 and 7 of IC102's empty pins. If you trace everything out, you'll see what I mean. On JDM boards, pin #15 doesn't go through IC110, but goes to IC102 instead. So, you can eliminate the 2 jumpers that take it through IC110, and then just jumper it in and out of IC102 (I count IC102's pins starting from the side with the gap: 1,gap, 2,3,4,5,6,7,etc). I don't know whether its necessary or not, but I also soldered a 100K pull-down resistor to the jumper on IC102, to pull it slightly to ground.
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