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Forum nameEngine Management Systems & Controllers
Topic subjectMitsu 5 pin Ignitor wiring to run MS with spark
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=54&topic_id=776
776, Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by XtremeRS, Dec-31-69 06:00 PM
Looking at the Ignitor pins facing you:

- - x - - -
1 2 3 4 5

Factory 4g63 Ignitor harness wire colors:

1= Yellow/black- Goes to 420A coil trigger wire- black/blue(1+4)
2= Yellow/red - Goes to X11 output on MS DB37(LED 17 Spark output)
3= Black - Goes to GROUND(a good, clean ground)
4= Yellow - Goes to X12 output on MS DB37(LED 19 Spark output)
5= Yellow/green- Goes to 420A coil trigger wire- brown(2+4)

*Be sure to disconnect the stock ECU from the coilpack. Cut and insulate the ECU side of the coilpack trigger wires. I used male/female connectors on the wires, so it would be easy to re-connect the stock coilpack trigger wires.

You can find the 5 pin mitsu ignitor on ANY 4g63 DOHC distributorless non turbo motor. I *believe* the turbo models use the 7 pin ignitor module, which will work also. I grabbed 2- 5 pin modules from a 1st gen Galant 4g63 DOHC non turbo, and cut the harnesses off.
777, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by DR1665, Dec-31-69 06:00 PM
Thank you.
778, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by whodatt1, Dec-31-69 06:00 PM
cool.. great info.
784, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by Star Turbo Talon, Dec-31-69 06:00 PM
I dont know what happened to this thread but i need it for the 7 pin


http://www.msefi.com/viewtopic.php?t=5734



It says the thread doesnt exist???


Terry
949, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by etx, Dec-31-69 06:00 PM
Originally posted by Star Turbo Talon
I dont know what happened to this thread but i need it for the 7 pin http://www.msefi.com/viewtopic.php?t=5734 It says the thread doesnt exist??? Terry


It's easy. The markings on the 5-pin and 7-pin are similar. The ones you need are IO1 OC1 G IO2 OC2 for the 5 pin. The 7 pin has an output for a tach signal and something else I cannot remember off the top of my head. Disregard those. IO is in from the MS and OC is out to the coil pack.

Everyone make sure you power your +12vdc feed to the coil pack (center pin on the three pin connector) from something like the fuel pump relay on the relay board. If you don't have the relay board wire up a relay so that the ignition get's power when the fuel pump is on. This will prevent current from getting the the coilpack when the motor is not running. I had my feed coming from the ASD relay and the ecu was turning it off under boost causing about a month of headache!
957, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by etx, Dec-31-69 06:00 PM
Originally posted by etx
Originally posted by Star Turbo Talon I dont know what happened to this thread but i need it for the 7 pin http://www.msefi.com/viewtopic.php?t=5734 It says the thread doesnt exist??? Terry
It's easy. The markings on the 5-pin and 7-pin are similar. The ones you need are IO1 OC1 G IO2 OC2 for the 5 pin. The 7 pin has an output for a tach signal and something else I cannot remember off the top of my head. Disregard those. IO is in from the MS and OC is out to the coil pack. Everyone make sure you power your +12vdc feed to the coil pack (center pin on the three pin connector) from something like the fuel pump relay on the relay board. If you don't have the relay board wire up a relay so that the ignition get's power when the fuel pump is on. This will prevent current from getting the the coilpack when the motor is not running. I had my feed coming from the ASD relay and the ecu was turning it off under boost causing about a month of headache!



I messed up. It's IB1 OC1 G IB2 OC2 , but you get the idea. IB = input, G = ground and OC = output. 1 is channel one and 2 is channel two. Super simple.
1934, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by selmerguy2003, Dec-31-69 06:00 PM
I just got my ignitor today and want to clean this up a little. It is the year of the car that is the difference between the 5 and 7 pin. Both the turbo and the nonturbo have 7 pins in the later modle 1g's.
1976, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by MFGRacing90GSX, Dec-31-69 06:00 PM
On the 1G ignitor issue, You can find the 5 pin on 1990 Eclipse,Talon, Laser, 1991+ you can find the 7 pin. Turbo/NON Turbo Does not matter
This is because the 1991+ has a tach adapter built in the the ECU. The 1990 has a external tach interface on the back of the CoilPack.
3483, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by Sour Kraut, Dec-31-69 06:00 PM
When using the 4g6X ignitor, what do you set your dwell for in the megatune?
3484, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by bullettdsm, Dec-31-69 06:00 PM
Well, this is going to be specific to your set-up but I am using a running dwell of 3.0 (cranking dwell of 10.0). This is with the 5 pin. Just be aware of any heat generated problems within the box (that's why I put that disclaimer on there. I don't want to be responsible ;)
4517, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by Boosted_Talon98, Dec-31-69 06:00 PM
do you need the 4g63 ignitor if you are running the symtech labs ems kit?
4518, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by VelocitaPaola, Dec-31-69 06:00 PM
Originally posted by Boosted_Talon98
do you need the 4g63 ignitor if you are running the symtech labs ems kit?


No, you do not. Most Megasquirt ECU's come with internal ignitors these days.
4959, RE: Mitsu 5 pin Ignitor wiring to run MS with spark
Posted by unknsldr, Dec-31-69 06:00 PM
Originally posted by VelocitaPaola
Originally posted by Boosted_Talon98 do you need the 4g63 ignitor if you are running the symtech labs ems kit?
No, you do not. Most Megasquirt ECU's come with internal ignitors these days.


with most of the older versions you do though.
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