EFIDynoTuning Forum

Hi,

Looking for EFI-SD42 circuit board images front and back if possible please.

Also, looking for binaries for JOY0 or ZAK0 or similar for EFI-SD42.

I believe these boards are for 5.0l manuals, with power steering pressure switch input.

Why?
I'm doing a fare amount of hacking on SD boards and this is just another thing to add.
I am reverse engineering so I can fully understand that I/O pin on the CPU, as well as follow the traces on the circuit board to follow what EEC-IV pin to use.

I will soon have 3-4 extra input/outputs that I can use for whatever I want.
Example: trip minder output, A/F input, maybe VGT.

I have a SD42/JOY0 if you're still interested (looks like it's been a year)

Ah, yes, had to read my own post to remember why.
I’m interested in the power steering switch circuitry, and the code with it.
So, yes, still interested.

Attached the bin.

My only photos right now are angled shots of the caps that I'll be replacing when I take the ECU out to lock in the tune. I've attached them in case they happen to be helpful, but I'll take proper top/bottom photos when I have the module out next.

Thank you!

So I just discovered that none of the '95 F150s were actually wired for a power steering pressure switch (according to the EVTM). I guess my 5L/M5OD config simply came with the legacy ECU.

attached ZAK0

I found it laying around and didn't read it out directly so I don't know if its correct or accurate or unmodified but should be stock.

Cool. Thank you

So, what I have found with both JOY0 and ZAK0, is that the PSPS is set to 0.
I have yet to find a stock bin where it is set to 1.
Maybe I have the wrong scalar.

In some of the Aussie SD ones I am working on have "hardware present set to 0" and it appears to be compared to 1 as being not present.
I will post a example when I have computer on.
I might also be looking at it incorrectly....