secondary injector module/ecu

[spork2367]

Originally Posted by XfireZ51

You’ll need to ask MegaSquirt. I was not aware that MS used 16 injector drivers or do they just replicate the LT5 ECM? I have no idea why a 92 would be different than a 91.

Are you saying the injector impedence changed in 93 or that is what must have happened IF the modules had been eliminated?

It's been low on the list, but I will have to email them at some point.

If the modules changed and aren't interchangeable, I'd guess it's because the injector impedance changed.

Originally Posted by -=Jeff=-

My best guess for 1990 to 91-95 variation has to do with the power key and how it works..

Interesting. Could be. I know with the megasquirt the power key becomes basically a programmable input. Maybe it's just based on wiring differences in the switch circuitry.

[spork2367]

Apparently all injectors are interchangeable, so impedance is all the same.

[GOLDCYLON]

Originally Posted by -=Jeff=-

My best guess for 1990 to 91-95 variation has to do with the power key and how it works..

Has to be. Key on and off switch vs. the Module. Maybe resolved at the chipset with key always on option. GC

[-=Jeff=-]

I also believe Megasquirt still uses the Secondary modules.. that ECm was designed to be Plug and Pray (Err I mean PLay)

[XfireZ51]

Originally Posted by -=Jeff=-

I also believe Megasquirt still uses the Secondary modules.. that ECm was designed to be Plug and Pray (Err I mean PLay)

😂😂😂😂 Yeah but it doesn’t like to play w the CCM.

[spork2367]

Originally Posted by -=Jeff=-

I also believe Megasquirt still uses the Secondary modules.. that ECm was designed to be Plug and Pray (Err I mean PLay)

I had mine out of the box once, put it on my 91 and it had a very long crank time until it started and ran like crap. Haven't fooled with it since.

Originally Posted by XfireZ51

😂😂😂😂 Yeah but it doesn’t like to play w the CCM.

In what aspect? To the best of my knowledge, the only things they hadn't worked out were the trip computer/mpg stuff.

[-=Jeff=-]

yes Spork, that and the last email said other stuff would glitch and then come back to normal.

I first pinged them in May of 2016.. 2 years ago, the issues have not been resolved and the unit is not anywhere for sale.. it is unfortunate, I would like to see a solution for our cars.. The guy that bought the 94 barn find needs a DIS.. so some of those specific modules are our Achilles Heal

[spork2367]

Originally Posted by -=Jeff=-

yes Spork, that and the last email said other stuff would glitch and then come back to normal.

I first pinged them in May of 2016.. 2 years ago, the issues have not been resolved and the unit is not anywhere for sale.. it is unfortunate, I would like to see a solution for our cars.. The guy that bought the 94 barn find needs a DIS.. so some of those specific modules are our Achilles Heal

They don't have access to the info needed to fix the ccm issues and likely never will, nor will it be worthwhile to invest the time due to the low demand.

I believe these are for sale any time, you just may have to wait until they get a couple orders before they build. I know when mine was built they had 2 or 3 orders. I ordered mine in March of 2016. Took about 2 months to get, with some communication issues along the way.

I hope to get it up and running this summer.

[tpepmeie]

The wiring pinout is different between 90 and later years for both the power key (as mentioned), including the power key lamp, and the knock sensor. Later years also had EGR, but I doubt anyone running the MS would care about EGR.

[-=Jeff=-]

Originally Posted by tpepmeie

The wiring pinout is different between 90 and later years for both the power key (as mentioned), including the power key lamp, and the knock sensor. Later years also had EGR, but I doubt anyone running the MS would care about EGR.

Oh yeah forgot about the knock sensor.. all the above are easy enough to change