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4x4player
New Member
- Joined
- Dec 2, 2013
- Messages
- 23
- Reaction score
- 0
- Points
- 1
- Age
- 56
- Location
- Tucson, Arizona
- Vehicle Year
- 1988
- Make / Model
- Ford
- Engine Type
- 2.9 V6
- Engine Size
- 2.9L V6
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
- Total Lift
- About 1.5" in front and 2" rear
- Tire Size
- 29x10.5x15
- My credo
- He who travels faster, travels alone.
So, I had a meltdown in the engine compartment. Numerous connectors, fusable links and a few wires melted together. Fun
Anyway, I have several 80's Ford wire harnesses to pick at, and a set of factory Ford wiring diagrams for my truck.
I eliminated a few of the defective connectors and relocated a few grounds. (not a big deal.)
All is going well until I discover that the plug that goes into the knock sensor is nowhere to be found. Weird I thought. Looking at the wiring diagram I find two wires that are supposed to go to it. An 18 gauge, Light Green/black stripe and another 18 gauge, Black/white stripe. The Black wire is the signal return path back to the Brain, and here is the confusing part, according to the wiring diagram, the green wire goes to the "air-port solenoid signal" (huh?)
I thought the knock sensor told the EEC to pull out spark advance until the rattle goes away. (?)
On the drivers side inner fenderwell is a bunch of connectors. (two of which are on the shop floor!) I found half of a two pin (gray) connector not hooked up to anything. The wires are different colors. Anyway, I found another (gray)2 pin connector just a few inches away. I disconnected the two halves and discovered that one half will plug into the connector that was missing it's other half. This is too weird.
Did I just discover two Ford Engineering mistakes?
One: the wiring diagram is wrong? Two: interchangeable connectors?
I still gotta figure out the Knock sensor.
Is it possible to temporally leave it disconnected?
Anyway, I have several 80's Ford wire harnesses to pick at, and a set of factory Ford wiring diagrams for my truck.
I eliminated a few of the defective connectors and relocated a few grounds. (not a big deal.)
All is going well until I discover that the plug that goes into the knock sensor is nowhere to be found. Weird I thought. Looking at the wiring diagram I find two wires that are supposed to go to it. An 18 gauge, Light Green/black stripe and another 18 gauge, Black/white stripe. The Black wire is the signal return path back to the Brain, and here is the confusing part, according to the wiring diagram, the green wire goes to the "air-port solenoid signal" (huh?)
I thought the knock sensor told the EEC to pull out spark advance until the rattle goes away. (?)
On the drivers side inner fenderwell is a bunch of connectors. (two of which are on the shop floor!) I found half of a two pin (gray) connector not hooked up to anything. The wires are different colors. Anyway, I found another (gray)2 pin connector just a few inches away. I disconnected the two halves and discovered that one half will plug into the connector that was missing it's other half. This is too weird.
Did I just discover two Ford Engineering mistakes?
One: the wiring diagram is wrong? Two: interchangeable connectors?I still gotta figure out the Knock sensor.
Is it possible to temporally leave it disconnected?
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