Wiring help!!!
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Joined: May 2013
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From: Summerville South Carolina
Wiring help!!!
I am in the middle of buttoning my engine back up after a cam install and i have a connector that i cannot figure out where it goes. On the drivers side injector harness there is a connector just aft of the #7 Injector plug that looks almost identical to the coolant temp sensor pigtail. it comes out of the wiring harness right next to where the sensor that plugs into the top of the back of the block comes out.(right under the back of the intake, but not the sensor that plugs into the intake.) It would be where the oil pressure sending unit would be for a 1st gen small block. this pigtail that i cant figure out is also a two-pin like the coolant temp sensor but the little gray clips that clip into the fuel rail that hold the harness in place are clipped in and the four injectors are all hooked up so its not like the harness isn't long enough or not in the right place, i just cannot see where it plugs in. any help would be GREATLY APPRECIATED.
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Joined: Feb 2013
Posts: 167
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From: Atlanta GA
I actually have my intake off and all my wires exposed (and have taken these connectors on and off MANY times over the past couple of months)
I do not see a two wire plug coming out of exactly where you are saying... But there are a couple in the area. What color are the wires? (or can you take a pic of where its coming out)
Not pretty looking but here is a pic with my intake off:
I do not see a two wire plug coming out of exactly where you are saying... But there are a couple in the area. What color are the wires? (or can you take a pic of where its coming out)
Not pretty looking but here is a pic with my intake off:
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Joined: May 2013
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From: Summerville South Carolina
I'm actually working all day today and won't be home till tomorrow but I'll try to take a picture. For now on the drivers side if you follow the last injector ( #7 injector) pigtail back along the wiring harness just as it turns left (looking from the front towards the back) and goes behind the intake there are two pigtails that come out. One goes to a sensor that is on the top of the block just on the edge, so the back right corner ( looking from the front of the car)of the intake. Where that wire come out of the harness another one also comes out and looks almost identical to the coolant temp sensor. That's the pigtail I'm lookin for
Instructor
Joined: Feb 2013
Posts: 167
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From: Atlanta GA
I'm actually working all day today and won't be home till tomorrow but I'll try to take a picture. For now on the drivers side if you follow the last injector ( #7 injector) pigtail back along the wiring harness just as it turns left (looking from the front towards the back) and goes behind the intake there are two pigtails that come out. One goes to a sensor that is on the top of the block just on the edge, so the back right corner ( looking from the front of the car)of the intake. Where that wire come out of the harness another one also comes out and looks almost identical to the coolant temp sensor. That's the pigtail I'm lookin for
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Joined: May 2013
Posts: 87
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From: Summerville South Carolina
Sounds like the knock sensor plug - which goes into a pigtail that connects to your knock sensors under the intake. But I'll look again tomorrow and see if there are any other connections back there - but as far as 2 wire that's all I remember on the harness at that spot.
