MSII to GM 2.4 twin cam DIS system interface

Peter Florance · Post by **Peter Florance** » Sat Sep 09, 2006 12:27 pm

Trying to help a user interface from this DIS system (single connector, 11 pins) to MSII
1996-2000 Cavalier is typical example.

All MSII docs I've found relate to 2-connector DIS systems.
Anyone familiar with this setup? We can't seem to get any RPM signal of any type.
I suspect it has to do with ref lo output, but not sure.

Thanks!

Peter Florance · Post by **Peter Florance** » Sat Sep 09, 2006 12:27 pm

Trying to help a user interface from this DIS system (single connector, 11 pins) to MSII 1996-2000 Cavalier is typical example. All MSII docs I've found relate to 2-connector DIS systems. Anyone familiar with this setup? We can't seem to get any RPM signal of any type. I suspect it has to do with ref lo output, but not sure. Thanks!
Peter Florance First Fives Dictator for Life 81 BMW Euro 528i w/ 3.5L & Megasquirt Programmable Fuel injection 81 BMW US 528i ("Repo Car") mailto:peter@firstfives.org http://www.firstfives.org SSR# 284 BMWCCA # 67456

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Peter Florance · Post by **Peter Florance** » Sat Sep 09, 2006 12:27 pm

Trying to help a user interface from this DIS system (single connector, 11 pins) to MSII 1996-2000 Cavalier is typical example. All MSII docs I've found relate to 2-connector DIS systems. Anyone familiar with this setup? We can't seem to get any RPM signal of any type. I suspect it has to do with ref lo output, but not sure. Thanks!
Peter Florance First Fives Dictator for Life 81 BMW Euro 528i w/ 3.5L & Megasquirt Programmable Fuel injection 81 BMW US 528i ("Repo Car") mailto:peter@firstfives.org http://www.firstfives.org SSR# 284 BMWCCA # 67456

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tebriel · Post by **tebriel** » Sun Sep 10, 2006 7:15 am

is that an ecotec engine? I think a guy named WOPontour did some work with that, maybe look up some of his old threads?
-teb

tebriel · Post by **tebriel** » Sun Sep 10, 2006 7:15 am

is that an ecotec engine? I think a guy named WOPontour did some work with that, maybe look up some of his old threads? -teb
www.turbosaturns.net

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tebriel · Post by **tebriel** » Sun Sep 10, 2006 7:15 am

is that an ecotec engine? I think a guy named WOPontour did some work with that, maybe look up some of his old threads? -teb
www.turbosaturns.net

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bluetrepidation · Post by **bluetrepidation** » Sun Sep 10, 2006 11:05 am

you need a pre 95 DIS unit to work with MSII. The older units could read the crank position signal directly so only a simple connection was needed. The newer units don't read the crank the ECU must decode that plus they have two spark channels which at this point the MS can't do. This isn't far off though once the GPIO board is done.

http://megasquirt.sourceforge.net/extra ... gmdis.html

A.J.

bluetrepidation · Post by **bluetrepidation** » Sun Sep 10, 2006 11:05 am

you need a pre 95 DIS unit to work with MSII. The older units could read the crank position signal directly so only a simple connection was needed. The newer units don't read the crank the ECU must decode that plus they have two spark channels which at this point the MS can't do. This isn't far off though once the GPIO board is done. http://megasquirt.sourceforge.net/extra ... gmdis.html A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA MS II Blue Processor w/ 2.686t5 Beta Code V3 PCB MegaTune 2.25 Innovate LC1 WB O2 Sensor OBD I Saturn Wasted Spark DIS w/ Cooling Fan and IAC

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02z24sc · Post by **02z24sc** » Sun Sep 10, 2006 12:19 pm

Will a 95 ICM work with an OBD-2 system from a 02 Cavalier with 2.4 twin cam engine. (2.3 Quad 4 is the predescor to the 2.4).

02z24sc · Post by **02z24sc** » Sun Sep 10, 2006 12:20 pm

Will a 95 ICM work with an OBD-2 system from a 02 Cavalier with 2.4 twin cam engine. (2.3 Quad 4 is the predescor to the 2.4).
The faster I go, the better I feel.

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