rogue electrical connector

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wsuuwp

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Can anyone help me with what this connector goes to? For some background, I have a knock sensor error code on my 1995 K1500. I have replaced and checked everything. I found this connector taped to the wires going to the ignition coil. It was not plugged into anything, and I could not find anything close by that it could connect to. I am wondering if this has something to do with my knock sensor code.

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thinger2

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We will need a little more detail.
What have you replaced?
Did you replace the knock sensor and its pigtail?
Tell everybody the whole story about what you have done.
The more information you can give more likely somebody here can figure it out.
Its all in the details .
 

GMCTruck

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I just checked my 1995 k1500 TBI 5.7. I have that connector as well. It is not connected to anything.
 

FrankieD61

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Can anyone help me with what this connector goes to? For some background, I have a knock sensor error code on my 1995 K1500. I have replaced and checked everything. I found this connector taped to the wires going to the ignition coil. It was not plugged into anything, and I could not find anything close by that it could connect to. I am wondering if this has something to do with my knock sensor code.

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My truck has that same connector. It's a connection for a secondary tach, I'm pretty sure.
 

wsuuwp

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We will need a little more detail.
What have you replaced?
Did you replace the knock sensor and its pigtail?
Tell everybody the whole story about what you have done.
The more information you can give more likely somebody here can figure it out.
Its all in the details .
Regarding the knock sensor, I have replaced it with both a cheap and a high quality knock sensor. I have made sure to torque it to the correct specification. I have replaced the pig tail. I have even replaced the engine computer. I thought it might be an actual engine issue, but it seems to come on after clearing the code without revving the engine.
 

thinger2

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Regarding the knock sensor, I have replaced it with both a cheap and a high quality knock sensor. I have made sure to torque it to the correct specification. I have replaced the pig tail. I have even replaced the engine computer. I thought it might be an actual engine issue, but it seems to come on after clearing the code without revving the engine.
Dont clear the codes.
That doesnt fix anything. That is just throwing the information you need out the window and trying to start from scratch everytime.
You need those codes and all of the data that you can get from those codes.
Those codes are the ecm telling you something.
Everytime you disconnect the battery or clear the code you are loosing the information you need to know and you are forcing the ecm to restart the same process it went through before you cleared the codes.
You want those codes and all of the feedback you can get from the ecm.
It is telling you something.
Everytime you disconnect it or reset it you are loosing what it is trying to tell you.
Because it has to restart and go through all of its procedures and programming and start from scratch.
And it will still end up being the same thing.
In my experiance when I went all nutty and rebuilt my TBI and put a new distributer in and cleaned my egr and a new temp sensor and tpi and a new tps and a whole bunch of other crap all in one day I had a hell of a time getting all of that to reset and work toghether.
All of the GM flowcharts are set up for individual component replacement.
There is no "replace everything" all at once flow chart.
I was basically trying to force my 1994 ecm to operate with all of the components brand new and out of range.
It was an absolute mess.
I solved a few of the problems by getting it hot at zero tdc with the dist wire disconnected.
I finnaly got the damn thing to run right by replaceing the shorted wires at my manifold collant temp sensor and the grounds on the back of the passenger side head.
And the battery cables.
The number one source of electrical ******** on a gmt400 is the battery cables
 
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