i am trying to find the plug in where you plug in the computer to check the check engine light it a 1992 civic can anyone tell me where it located at and if you have picture that would be great thanks if you could tell me the color of the plug in and how many pin in it that would help me in finding it

txgreasemonkey

Along the firewall, just to the right of the fuel filter. Look for the vacuum hose going from the throttle body to the MAP Sensor.

My bet is that your ECM is fried, if the CEL stays on when you turn the ignition key to ON (Position II).

shawn0634

ok testing the map sensor this is what i have when i disscount the plug from the map sensor i have 3 wire a yellow wire with green strip and a green wire and a white wire now with the mult meter how do i know which wire is the + and - one and do i test the plug that i disconect from the map sensor or the plug that on the map sensor ?

txgreasemonkey

Red = +
Black = Negative

You turn the ignition switch to ON (Position II) and connect the right-hand socket in the connector to the red test lead. Connect the black test lead to any ground on the engine block.

shawn0634

i dont have any red or black wire the wire that on there is yellow with green strip and white and green which one is the + and the - do you know

txgreasemonkey

I'm talking about the red and black test leads on the multimeter.

shawn0634

the right hand socket has 3 pin slot in it and all 3 lead to a diff wire there one wire that green with yellow stripe and a white wire and a green wire which pin slot on the socket should i put in the red + mult meter test lead ?

shawn0634

ok i am trying to test the ecm here ture the map sensor which wire on the map sensor is the + can anyone tell me ? there no red wire