TPS sensor wires

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martingmc86

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gmc sierra 1500
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v8 5.0
Hey guys,I have a 86 gmc sierra 5.0 4 barrel carb I need help identifying my TPS wires going into my sensor I need to know which one is the TPS signal and which one is the ground wire? Can you help me please?
 
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Ricko1966

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Hey guys, I need help identifying my TPS wires going into my sensor I need to know which one is the TPS signal and which one is the ground wire? Can you help me please?
We got another one!!!!! Year? Model? Engine?
 

Ricko1966

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Busy and working from memory,I'll look harder later. From memory you have a yellow wire it's 5v reference ignore it check continuity to ground with your DVM on the other two. 1 will read open it's signal one will read o it's your ground. If no yellow find the 5 v wire and proceed as above.
Home now, looked for you,grey is 5v reference,blue is signal, black is ground
 
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martingmc86

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california
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martin
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86
Truck Model
gmc sierra 1500
Engine Size
v8 5.0
Busy and working from memory,I'll look harder later. From memory you have a yellow wire it's 5v reference ignore it check continuity to ground with your DVM on the other two. 1 will read open it's signal one will read o it's your ground. If no yellow find the 5 v wire and proceed as above.
Home now, looked for you,grey is 5v reference,blue is signal, black is ground
Ok that’s makes sense So with that being said I need to do the following splice in to my tps signal wire that should be (blue) and splice in to my ground reference wire that should be (black)
 

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