Hey All,

I have been looking around for awhile now on the site trying to identify these plugs, any help would be appreciated. the car is an 84 T/A with the H.O. 5.0.

 

1 looks like cruise control.
2 can't tell.
3 looks like the wiper motor.
4 looks like the supply to the ECM plus a giant hack job.

That car has really suffered some serious electrical abuse. As well as having A BUNCH of stuff hacked off of it.

 

#2 'could' be the oil pressure switch for the in-tank pump IF it reaches to the rear of the block near the base of the distributor AND the motor has the two prong oil pressure switch located there.

 

I totally forgot about the wiper motor, 3 makes since. as for 4, I planned on fixing that wire or removing depending what it was needed for, The ECM has been eliminated so if that is the case it can be removed as well.

as for the car itself, the engine bay wiring has been abused for sure, the person before me decided to eliminate the electronically controlled q-jet but left all the wires either hanging or cut off the connectors. since I have gotten the car i finished removing all the wiring from the passenger side/computer, but the wiring on the drivers side still has some extras that I wasn't sure about which is why i posted, as for the engine bay being "hacked" that doesn't matter too much considering I'll be doing an engine swap anyways.

The car runs and drives now, just with some extra wires that are unsure about, I'll be installing a new wiper motor here soon too so that solves one of the plugs.

There is an oil pressure sensor at the rear of the engine next to the distributor, but it is already hooked up to what I am assuming is the oil pressure gauge/dummy light? and its single prong, would there be a second sensor/switch somewhere else? this is the L69 so it does have an in-tank pump.

 

Some in-tank pump systems used an oil pressure switch that is tee'd off of the same bronze fitting that feeds the oil pressure sender-which is your single prong wire.

Another place for the switch could be the oil pressure port near the oil filter, although I've not seen a carb'd fbody with one there (but I haven't seen EVERY carb'd fbody).

That plastic cover sure looks like the one installed on the oil pressure switch ...could be something else though.

 

Just because it was a L69 does not mean it has an electric pump. My l69 does not have the pump or the wiring for it as delivered from the factory.
I am away on vacation right now but when I get back I will trace the wires on mine.

 

Mine DOES have the helper pump, I can see the wiring going back to the tank.

 

The first pic appears to be the wiring for the L69s' Cowl hood Flap solenoid

The second pic appears to be the Oil Pressure / Fuel pump cut-off. ( might be related to the cowl flap too ).

Looks like the 3rd and 4th are wiper and ECM as described by other members.