1987 4.0 wiring help needed

[MOBBiN]

I'm working on undoing all the PO's work. I have a few thinking in need to wrap up. Any help would be appreciated

 

Starting on the drivers side...

 

1.throttle body. Is the top hole is open. Should it be plugged in to anything or filled

 

2.back of the block near injectors 5 & 6

 

3. Back of the block near injector 6

 

4. Plug by the air box. Pretty sure this is for the e-fan... because its missing

[MOBBiN]

Passengers side

 

5. Plug with TCM grounds

 

6.

 

7. Purple plug coming out of the back of the heater box grommet

 

8. Red wire coming out of the harness by the battery

[87MJTIM]

#1 is the vacuum line for the map sensor.  There is only one line out.  The other hole doesn't go through to the TB.

 

#2 & #3 is the temper gauge/idiot light wire and sensor/switch.  Looks like the plug and sensor are mis-matched.

 

#4 You're probably correct, but I am not sure.

 

#5, # 6 & #7 -  :dunno:

 

#8 could be for the under hood light.  Doesn't look like yours has one.  I would be bolted to the hood just above the coolant bottle.

[kook911]

2-3. Two hooks into three. 2 is for the temp gauge. If you have a full cluster then it should be peg. If you idiot light then it will never work. Buy the correct plug for 3 and then 2 will hook in.

 

4. You are correct.

 

5-6. Don't have a clue.

 

7. That is the vacuum switch for the heater core. Where you see the tee in the back there use to be a plastic picec of junk. Old owner did away with it and just ran straight lines. Does you heat work? Also just cap it off.

 

8. No clue

[MOBBiN]

#1 is the vacuum line for the map sensor. There is only one line out. The other hole doesn't go through to the TB.

 

#2 & #3 is the temper gauge/idiot light wire and sensor/switch. Looks like the plug and sensor are mis-matched.

 

#4 You're probably correct, but I am not sure.

 

#5, # 6 & #7 - :dunno:

 

#8 could be for the under hood light. Doesn't look like yours has one. I would be bolted to the hood just above the coolant bottle.

#1 was open on the top. I plugged it off

 

2-3. Two hooks into three. 2 is for the temp gauge. If you have a full cluster then it should be peg. If you idiot light then it will never work. Buy the correct plug for 3 and then 2 will hook in.

 

4. You are correct.

 

5-6. Don't have a clue.

 

7. That is the vacuum switch for the heater core. Where you see the tee in the back there use to be a plastic picec of junk. Old owner did away with it and just ran straight lines. Does you heat work? Also just cap it off.

 

8. No clue

Thanks guys!