Resolved 1G Name that wire????

[sciondan]

Ok, so I was looking for a vacuum leak and came across this connector. Noticed one wire was broken due to corrosion, big surprise. Anyway's I have no clue what it is for. I have no codes or cel and the car runs good. Was checking for a vac leaks due to my idle fluctuating between 750 to 1100 rpm. Side note: that idle crap started after I Sea foamed. But anyway's can someone please tell me what this harness is for? It's on the back of the intake manifold. Also I don't even see a place for the wire, it looks like a two wire connector. Only thing I could think of is two wires go to one pin.

 

[93laser1g]

Ok, so I was looking for a vacuum leak and came across this connector. Noticed one wire was broken due to corrosion, big surprise. Anyway's I have no clue what it is for. I have no codes or cel and the car runs good. Was checking for a vac leaks due to my idle fluctuating between 750 to 1100 rpm. Side note: that idle crap started after I Sea foamed. But anyway's can someone please tell me what this harness is for? It's on the back of the intake manifold. Also I don't even see a place for the wire, it looks like a two wire connector. Only thing I could think of is two wires go to one pin.

Is it possible to get a better pic? It kinda looks like harness for your ISC...

 

[TheMadCheshire]

That sure looks like the knock sensor. See if you can follow the other end and see if it goes to the block. If it goes to a round thing on the back of the block(kind of under that bracket support) it is your knock sensor connector.
Either way, see if you can trace what the connector goes too. A better picture might be able to confirm this connector as well.

 

[19Eclipse90]

It's for your tachometer. Check B-00 here: http://www.dsmtuners.com/forums/articles-electrical-wiring/412841-1990-engine-control-wiring-harness.html.

The ISC is a 6-pin rectangular connector. The knock sensor is a gray connector.

Two wires do go to one pin, the bottom one, specifically.

 

[TheMadCheshire]

19Eclipse90, thats a sweet post there. After thinking about it, I got back on to post it couldn't be the knock sensor and it was the tach wire. And there is visual proof.
You rock.

 

[slvrbllt]

that article will come in very useful 19eclipse90

 

[sciondan]

Yup it was for a noise filter. Thanks for help 19eclipse90.