I do not think the 94 sensor will fit in the 95 block
the 97 sensor is longer then the 95 sensor
The 95 was the first year of plastic intakes, not sure why , but the mounting depth of the cam sensor changed
97 was the first year of the 8 bolt crank, the cam sensor changed again!
from my 95 engine replace thread:
http://www.explorerforum.com/forums/showthread.php?t=151705
Next was the camshaft position sensor, here you can see th e95 vs the 97 sensor. As you can see the 97 sensor is deeper into the block, so it MUST be used with the 97 engine, requiring me to swap out the wiring plug on the harness:
(Earlier versions of the OHV (91-93) do NOT have this sensor, it can be deleted and the block off plate installed on the 95 TM block if you are putting this engine into an earlier model)
Some late model 93's (CA emissions 93's) also had a cam pos sensor
97 engine with 97 sensor (3 wires)
Okay so the 97 sensor will not fit the 95 block, the 94 sensor MIGHT work in the 95 block but I have not researched this. I remember reading the 95 cam pos sensor is unique to the 95
The difference between a 2 wire and 3 wire sensor is the 3 wire =
1. cam sensor wire to pcm
2. sensor signal return (ground)
3. power
2 wire:
1. sensor signal return (ground)
2. power/sensor wire to pcm
the two wire gets its ground from the SSR (light grey with red)
and its power from the CAm sensor wire from the PCM
You can EASILY install a 2 wire sensor into a 3 wire block and vise versa, you just have to tap into the solid red power wire (Acc 12V+ to all sensors)
it will work
the sensor is simply a stator telling the engine, yes the oil pump drive shaft is spinning
Get this the SOHC which has no cam above the crank like the OHV, but it still has the cam pos sensor mounted here and a dummy camshaft for driving the front timing chains LOL
I was not able to use the 95 guts in the 97 sensor body
My friend Brett put a 2004 SOHC into a 93 explorer sport using the 93 computer
His 93 truck HAD a cam pos sensor (CA truck) so we wired the 04 sensor to the 93 computer, 2 wire to a 3 wire harness, it works 100% (he ignored the valve cover moutned cam sensor on the SOHC)
so in conclusion:
- I do not think the 94 or 96 sensor will fit the 95 block but I have not tried
- I know the 97+ will not fit it
-You can use a 2 or 3 wire sensor regardless of your computer, simple wiring is required, but its been done over here a few times
-the cam sensor is a simple rotating stator, IMO the alignment tool is NOT required for the OHV 4.0L V6, it is my understanding the cam sensor is only used by the PCM during initial start up