Need help with MSD TCM wiring

[FLFrank35]

Building a '35 hot rod truck with
a Holley Sniper EFI (550-510) on a BluePrint crate Ford 306,
a Ford 4R70W with the MSD Atomic TCM (2760),
and a Lokar automatic electronic sport shifter.

I've reached out to Performance Automatic, BluePrint and Holley/MSD but haven't had any luck.


I believe I have all the wiring diagrams but do not quite understanding were to physically make some of the wire connections. I think I have the EFI wired correctly, but trying the integrate the TCM is proving to be difficult for me, specifically on the TCM 12-pin JAE connector:


Pin 1. Overdrive Cancel - I don't have a button for this. Do I need this since the shifter has manual/bump-shift mode? Can I ignore this wire?


Pin 2. TPS Ground reference - I believe this is basically a chassis ground, right?


Pin 3. Calibration Select - ??? Have no idea.


Pin 4. Manual Bump up/Manual mode select - Does this get connected to one or all of the Red wires (open circuit) of the shifter micro-switches?


Pin 5. TCC Lock - Does this go to the brake switch...Brake OFF side? Or someplace else?


Pin 6. Speed Out - Does this go to the speedometer?


Pin 7. TCC Unlock - Does this go to the brake switch...Brake ON side? Or someplace else?


Pin 8. TPS 5V - I think I know this one...I have an EFI and this is for carb so I don't think I need this so I tied it off.


Pin 9. Manual Bump Down - Does this get connected to one or all of the Blue wires (closed circuit) of the shifter micro-switches?


Pin 10. 12V Ignition - I think I got this too...Switched on 12 volt from ignition switch or other switched-on source.


Pin 11. RPM/Tach In - I took this signal from the EFI Tach Output.


Pin 12. - TPS Signal In - Not sure were to connect this. Don't see anything coming from the EFI that indicates TPSsignal.

[Briansshop]

I've never used the MSD trans controller, have read some not too good reviews online about it. I have used,2 times, the US Shift unit and like it. https://www.usshift.com/

I'll try to give some answers

1 - Yes, if you don't want the option
2 - This would be the signal ground from your 3 wire TPS sensor
3 - For selecting between different trans "tunes"
4 - Not familiar, would need to see the wiring schematic
5 - To manually lock the TC clutch,again assuming since I'm not familiar with the MSD unit
6 - Speed out prob not needed
7 - Opposite of question 5
8 - Yes correct
9 - Same as answer 4
10 - Yes
11 - Yes
12 - This will need to tie into the TPS signal, anywhere in the wiring that is convenient

[FLFrank35]

Briansshop thank you, thank you, thank you!! :D The MSD came with the kit...I don't know anything about TCM's. Between bnelson and you, I think I have the info I need to finish. I just got the shifter so I should be able to figure out the Manual Mode Bump Up/Down. And I just learned yesterday that I need an additional, stand-alone TPS sensor.

Thanks again!
Frank

[Briansshop]

Most will say you need a stand alone TPS,but I've haven't had a problem parralling with the EFI sensor. Just tie into the TPS signal only,not the reference voltage or ground wires.

[FLFrank35]

Where do we get the 5 volts from?

[Briansshop]

The TCM only needs the TPS signal. The 5 v is the supply for the sensor,your TPS sensor already is supplied a 5v reference voltage, So just the TPS signal to the TCM is all that's needed.

[FLFrank35]

Ok,thx!