i have a h22 ek with a p13 ecu. Trying to hook up an air/fuel gauge.

 

BUMP!

 

there seems to be a lot of these threads in the last week...

its the solid white wire toward the bottom of the ECU, when looking at it from the position of the passenger's seat:

EDIT: so yours is in a civic, so maybe the ECU is mounted differently. when looking at the ECU from the harness side, the solid white wire is off to the left.... if you used a prelude harness...

 

i have a conversoin harness so all the wires are black soooo. i need to know the pin. number

 

isn't it hook up to the O2 sensor?

 

pin it at the sensor itself, its the white wire

 

the easiest way is to just plice it into the O2 sensor. takes two seconds and its the same thing as taping into the ECU