I purchased one off ebay today for $15. I have a factory crank sensor in my stash box I will compare it to for those interested.
As for testing all I have is 94/95 stuff so no help there until later down the road when I get my nephews 89 running.
-Tim
That's great. I have also located the same crank sensor for sale on amazon (see link)
https://www.amazon.com/Crankshaft-Position-Sensor-Mazda-F27E6C315BA/dp/B07GJV1MTR
On page 20-4 of the Ford Shop Manual 1990 Thunderbird Electrical & Vacuum Troubleshooting Manual, I checked the wire colors and layout for the sensor circuit.
It looks to be identical in wire colors and color position as well as the function of the specific pinouts. I'm sure the red plastic clip on the sensor can be easily removed.
Also, according to the Wells manufacturer's spec sheet, the length of the wiring harness on this part is 24.25 inches, which is longer than the SC harness (way better than being too short); so the excess can be easily zip tied out of the way. Additionally, the Ultra-Power part (which is likely a Wells part, does have the same five wires (the fifth wire being the ground terminal to the braided shield which isolates Circuits 325 and 749 (Pulse outputs from crank and cam sensor, respectively) from external intereference. In the enclosed image file, you can see the the terminal for the ground braid (not very good photography which is why it wasn't noticeable on first glance, so I added the red arrow in the third picture). I also included some other detailed images showing wire color and position, as well as a clear view of the sensor body.
What I could use is the hole spacing measurement in the sensor body (since I haven't taken this off the engine yet). It seems logical that one sensor design was engineered by Ford for all the engines using this control system during this time period in their production cycle. There is a limited time this item was used, looks like 1989-1994.
term.#1 Dark Blue Circuit 349 from EEC
term.#2 Dark Blue/ Orange Circuit 325 to Pin 4 on DIS
term.#3 Light Blue Igntion Ground to sensors and DIS term.#7
term.#4 Red/Light Green 12VDC feed to coil, both timing sensors and DIS term.#1
~Dave
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