need help with wire ident

[3kgt2nv]

was looking into my running issue and found a wire near the ptu that ends with a round plug on it.

what does this plug go

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[92AWDHX40]

We need a picture.

 

[3kgt2nv]

pic uploaded

 

[Rummy636]

what part of the engine is it located? What are the wire colors?

 

[3kgt2nv]

it comes out of the harness right next to the ptu wire. the wire colors is black with a white stripe

the connector has a gray inner part

 

[92AWDHX40]

Ok is there a wire if its black and white it goes to the a/c compressor.

 

[3kgt2nv]

ok thats been deleted.

here are the codes i pulled

21 coolent temp sensor
22 crank angle
23 tdc sensor
31 knock sensor
41 injector circuit

whats weird is the car will start and run but stalls out. could it be a loose conection somewhere or are all my sensors bad?

its a 90 with a different head on it

 

[92AWDHX40]

Could be check wiring, sensors could be bad its a old car, things happen. 31 wont matter, its just for knock everything else i would check out.