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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

another wiring question

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Old Apr 19, 2007 | 10:20 PM
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another wiring question

Ok I have almost all the wiring done on 1988 F150 5.0 but there is a female plug with a green/black tracer and black/yellow tracer on the back of the motor at the fuel rail and also a orange wire coming out of the same branch of the harness that I cant figure out any where they go. I have looked at the wiring diagram but cant figure where they plug into to any ideas?
 
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Old Apr 19, 2007 | 11:32 PM
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From: The dark carnival
I too have an 88 302. Off hand, my guess would be the Knock Sensor.
 
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Old Apr 20, 2007 | 07:56 AM
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From: Easton,Ks
I think the plug you are looking at is the A/C Pressure switch plug C151 and the wires are black/yellow tracer and green/purple tracer.
The Orange wire is the ground for the O2 sensor.
 
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Old Apr 22, 2007 | 09:10 PM
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Ok I have a 1986 302 blloch that doesent have a knock sensor in it. I didnt relize this till after everything was togather.Is there a plug I can pull out and put a sensor in or just do away with the sensor and not have a check engine light on?
 
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Old Apr 22, 2007 | 09:26 PM
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From: Easton,Ks
Originally Posted by kodyowenby10
Ok I have a 1986 302 blloch that doesent have a knock sensor in it. I didnt relize this till after everything was togather.Is there a plug I can pull out and put a sensor in or just do away with the sensor and not have a check engine light on?
Note that the wire colors for the knock sensor in 1988 are Light Green with a black tracer and Black with a white tracer.
 
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