I just installed my Air fuel guage in my 93 hatch. I ran the ground wire and the power wire to my radio fuse and everything lit up fine. I was told to attach the last wire to the thick white wire on the center plug of my ECU. When I turned it on, it wouldnt light up!!!!! I have a P28 ecu and an LS/Vtec and its a VX. Please Help FAST!!!! My car is just sitting there. Any ideas anyone???

 

try to tap one of the wires from your O2 sensor, its either the white or green one i can't remeber.

 

Tap on to the white wire on the O2 sensor.

 

goto D14 on the ECU harness, connect the purple wire there.