MSefi.com read only forum (Jan.15,2018)

Hi Matt,

Thanks, this does help.

Is the source code for this section available or is it proprietary? I understand what it's doing from the link you sent, in that it counts physical teeth to get as close as possible to the firing point and then estimates only the last portion prior to the next ...

Hi,

I haven't determined how exactly MSII determines when to fire spark but from a programming point of view, there are at least two ways to do it.

One is to measure RPM and rate of change of RPM and set an Output Compare timer for the necessary dwell and advance and then let it execute ...

Hi,

Does a handy compilation exist that lists the popular options for crank trigger wheel sensors and the corresponding optimal tooth width? I'm trying to identify a compact sensor to use for my AH3000 project.

I have a wheel that I made before adequate research into VR sensors and I think the ...

kjones6039 wrote:OOPS.....

That link, of course, is just for the EDIS6 coil, but the link is still useful to find which vehicles used EDIS6.

Apologies for not making that clear in my reply.

Ken

Ken,

Thanks for the input. Some good information at the link.

Regards,
Adnan

Matt Cramer wrote:Aerostars from the same vintage - look on the fender.

Thanks Matt,

What about Rangers? Didn't they share a lot of drivetrain bits with Explorers?

Hi,

In searching this forum, I see that 91-95 Explorers used EDIS-6. What other vehicles and model years use the same?

Also, I've read that some use a flywheel VR sensor - would this same sensor be suitable for a typical crank pulley type trigger wheel? Ideally, if anyone knows of a vehicle that ...

Hi,

I would like to make some modifications to the code but I'm C-impaired. Aside from the syntax, I get lost with the multiple files structure, etc. However, I'm comfortable with Assembler.

One way for me to go about understanding the code structure (even basic things like how interrupts are ...

Hi,

Do you happen to know which COP coils, specifically? Either a part number or Mustang model year would be very helpful.

Thanks!

Hi,

I read through the three primary patents for EDIS and have understood the timing of the PIP signal. I also am inclined to believe that Megamanual is incorrect on this subject (see caveat below).

Per patent 5,014,676, column 4, line 54: "PIP - Synthesized signal of 50% duty cycle with rising ...

Hi,

I've done some searching, both in this forum and on the Internet and can't seem to find the answer to this question:

What is the timing of the PIP signal with respect to crankshaft position? Megamanual points out that the falling edge of PIP coincides with an ignition event (and mentions that ...