EVO I-III ECU Pinout and Wiring chart - Completed

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EVO I-III ECU Pinout and Wiring chart - Completed

Postby EVO-00X » Sun Nov 18, 2007 8:11 pm

Hi all. I've collected a few different ECU pinout drawings and wiring codes and combined the best descriptions into one. A couple were sourced from forums, one was a 3-page scan of a Mitsubishi document, and a couple were sourced from cross referencing to the 4G93 diagrams to see if the pinout had the same use or a better description. Nearly all of the info when put side between each of them matched up or made better sense which helped confirm each pinout. Basically I was comparing and confirming each pinout and entered the data into an excel spreadsheet (I sort of copied a layout someone did a while ago which I thought was a good idea but I added better descriptions to it).

DOWNLOADABLE PDF FILE

http://www.mediafire.com/?2guqyy3wl2y

or

http://www.filefactory.com/file/ah4eeha ... INOUTS_pdf

ALSO

Anyone doing any serious work regarding these EVO ECU pinouts (engine converions, different computers, rewiring etc) also needs to know the pinouts of the main relay. It is called the "MFI Relay". It has 2 relays in it, one controling the fuel pump. The other sends power to the sensors, injector resistor, and the ECU. It is important to see a wiring diagram to see how the relay interacts with the ECU, pinouts are not always enough.

On some Mitsubishis, the fuel pump side of the relay is momentarialy powered by the starter signal while cranking. On the Evo I,II,III the starter signal is sent to the ECU. The ECU then decides when to activate the fuel pump relay (and it does this while cranking).

Not all Mitsubishi MFI relays are wired the same. The Evo I is a 8 pin connector and these are the pinouts.

MFI Relay:
1. to fuel pump Black/blue
2. sensor power Red
3. Main power to ECU, pins 12 & 25 on ECU
4. 12V power Black/yellow

5. fuel pump signal, from ECU pin 8
6. power signal, from ECU pin 38
7. Ignition and also pin 62 on ECU
8. 12V power Black/yellow

cheers

Rob
Last edited by EVO-00X on Fri Nov 30, 2007 1:56 pm, edited 4 times in total.
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Postby EVO-00X » Sun Nov 18, 2007 8:11 pm

One of the boys on T4G gave me a link to a UK site and have since discovered better explanation for 3 & 16, and finally know what 41 is :)

Pin 3 = RADIATOR FAN RELAY (A/C LOW)
Pin 16 = RADIATOR FAN RELAY (A/C HIGH)
Pin 41 = NEGATIVE TRIGGER FOR TURBO SPOOL ICON IN EVO 1/ GSR GAUGES CLUSTERS

UPDATED PIC :wink:
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Postby Liberoz » Mon Nov 19, 2007 1:05 pm

Pin 41 = NEGATIVE TRIGGER FOR TURBO SPOOL ICON IN EVO 1/ GSR GAUGES CLUSTERS


One good reason a still have the turbo light on the cluster with a RSEII under the bonnet.
L I B E R O RSEII
- E v o l u t i o n -
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Postby EVO-00X » Fri Nov 30, 2007 1:59 pm

Completed... notice the plug for http://www.evocoupe.net in the bottom right hand corner of the pdf? :lol: :wink:
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Postby Marc » Sat Dec 01, 2007 12:11 pm

Ahhh nice.

Love ya work :D
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Postby Missile » Thu Jan 31, 2008 3:55 pm

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Current projects:
Mitsubishi ca5a/ce9a awd hybrid

Daily Rip:
ce9a Evo II

http://members.cardomain.com/m1ssile
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