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Need to wire MAP sensor as my car does not have the map wiring in the body harness like the chassis my motor came out of, got my obd1 h22 pinout but there’s only 2 listed. Internet says pins D17 D19 D21, pinout says D19 is egr lift sensor. I see D18 is VREF which I’m guessing is reference voltage, so I guess my question is can I use D18 or D19, and if neither where do I get my reference voltage?
OBD1 93 prelude vtec MAP question
