1995 Saturn SC2 GM DIS
Posted: Sun Oct 01, 2017 1:09 pm
See it in action here! https://www.youtube.com/watch?v=zU27vj9RZaw
Just thought I'd make a quick post for getting my 95 Saturn SC2 (LLO) fired up on MS2-Extra 3.4.2, 3.57 board, using the stock OBD1 ICM.
GM DIS Pinout
6pin connector:
A) 12v power (pink), needs to be hot in run & crank. Use 7.5 amp fuse.
B) 6X ref (white) -- unused, might drive a tach output?
C) EST wire (WHITE) -- used for Timing Advance signal. Wired to D14/SparkA.
D) Reference High (Purple w/white tracer) -- Tach input to MS
E) factory dash tach on 92 dash
F) EST Bypass wire (Tan w/black tracer) -- when 5v is applied, module will use timing signal from MS on pin C. When no signal, timing should be in limp-home 10* BTDC. I have this wired to D16 via SPR3.
5pin connector:
A) Positive crank sensor wire (yellow) -- goes to crank position sensor
B) Negative crank sensor wire (purple) -- goes to crank position sensor
C) not used
D) Reference low (red w/black tracer -- Goes to MS sensor ground
E) High current ground. Ground to the block.
Used with Basic Trigger ignition setting, with a 10 degree trigger angle, it seems to work pretty good.
Just thought I'd make a quick post for getting my 95 Saturn SC2 (LLO) fired up on MS2-Extra 3.4.2, 3.57 board, using the stock OBD1 ICM.
GM DIS Pinout
6pin connector:
A) 12v power (pink), needs to be hot in run & crank. Use 7.5 amp fuse.
B) 6X ref (white) -- unused, might drive a tach output?
C) EST wire (WHITE) -- used for Timing Advance signal. Wired to D14/SparkA.
D) Reference High (Purple w/white tracer) -- Tach input to MS
E) factory dash tach on 92 dash
F) EST Bypass wire (Tan w/black tracer) -- when 5v is applied, module will use timing signal from MS on pin C. When no signal, timing should be in limp-home 10* BTDC. I have this wired to D16 via SPR3.
5pin connector:
A) Positive crank sensor wire (yellow) -- goes to crank position sensor
B) Negative crank sensor wire (purple) -- goes to crank position sensor
C) not used
D) Reference low (red w/black tracer -- Goes to MS sensor ground
E) High current ground. Ground to the block.
Used with Basic Trigger ignition setting, with a 10 degree trigger angle, it seems to work pretty good.