In and running = Dual Ecu evo 8 and 02 ecu
dual ecu - it works
--------------------------------------------------------------------------------
****Edit **** wiring diagram is down below at your request
First off this has only been verified and tested with USDM Evolution 8 ecus and should not work for anything above 8. You may use any year evo 8 ecu but only some have intercooler sprayer functions. Also if you plan to program them and add tephras mods from evolutionm.net including nlts and knock cel etc.... you must have certain ecus or ECU IDS to do so.. ECU id is 96420008 for example and so on.. Evo 4 through 8 ecus should work and be close pinouts but again its not verified. JDM ecus have different pinouts from what i see and use different hard ware sometimes but its possible to rewire..
wiring
--------------------------------------------------------------------------------
heres wiring i am not liable for any issues that arise from this diagram so do this at your own risk and quadruple check everything before soldering.. Verify all your sensors are reading accurately with evo scan and such..... any questions ill do my best to help..
The pins in this diagram all for the stock ecu pinouts -- so find the pin on my list and u must match it with the evo diagram pins which are not listed here but can be found here http://www.roadraceengineering.com/e...-ecuwiring.htm
Im still learning different things with this setup so I will most likely change items if i encountered problems or find out misc things that you should know.. With the help of 3geclipse^ and others who might try this and find different things we can create 100% accurate guide.
only evo ecu
pin item
1 injector 1
2 injector 4
3 o2 sensor heater front
6 egr solenoid
9 injector 2
11 ignition 1,4
12 ignition 2,3
14 isc coil a1
15 isc coil b1
18 cooling fan pwm output
19 volume air flow reset
20 ac to pin 8 on evo
21 fuel pump relay
22 ses
24 injector 3
26 o2 sensor heater rear
28 isc coil a2
29 isc coil b2
34 evaporate emission purge solenoid
35 evap vent solenoid
43 tach signal
44 coolant temp signal
52 power steering switch input
55 baro pressure sensor
56 camshaft position sensor
58 starter signal
61 ac to pin 24 evo
71 o2 sensor front
73 o2 sensor rear
85 data link goes to pin 62 on evo for comms
90 knock sensor
91 mdp sensor
92 fuel tank diff sensor
113 datalink to 79 on evo
both ecus
pin item
16 sensor ground IAT cam and crank
41 12v switched
42 grnd
45 crankshaft sensor
46 5v sensor power
47 12 v switched
48 grnd
49 mfi relay
57 sensor grnd for o2 sensor coolant temp, tps
65 volume airflow sensor
66 backup power supply
78 tps signal
80 vehicle speed sensor
98 ignition
Special note --
(64 intake air temp signal)
connect intake air temp wire to ground with resistor around 300 to 350ohms to give it a normal temp number.
(44 coolant temp signal)
connect coolant temp wire to ground with resistor around 300 to 350 ohms to give it 174 or higher temp.
Special note--
Auto pcm only
pin
8
50
54
75-77
88
89
97
pins 101-130 stay connected except pin 113 which goes to pin 79 on evo
****** Old post *****
ive been reading and searching for answers and for someone who has done a dual ecu setup but found no one so..
i was stupid enough to wire in my 04 evo 8 ecu in with my auto pcm and it actually works well. I did some odds n ends tuning with the maf and idle settings and the idle is bearable but not stock -- driveability is pretty good.. i copied over my high octane to my low octane ignition map and its making some pretty good power.. cruise is like stock and boost is good with good timing and afr drops as it should to 12 and 11s on some harder acceleration. I wont run at wot until its hotter outside to see some logs... ill post up a log later with acceleration the timing and afr seem on point and i have completly removed and cut emanage wires... When i gather more info ill post rather than speculate
****** Old post *****
Ok i have decided i will finally use my evo 8 ecu on my car.. I have an 02 still AT and i will wire in the evo 8 in conjuction with my ecu... I have the pinouts and rechecked them with my service manual and I believe i am ok except for one main issue and some small ones... I have found 1 extra datalink connector from our pinout that i cannot find for the EvO ecu.. we have 3 on my pinout and the evo only has two from rres pinout.. Does anyone know if this will affect my flashing this ecu as i cannot proceed if i cannot flash the beast.. Also the dual load fuel pump relay = i dont know if i should use the evos fuel pump relay pin or my stock ecu -- i am going to try the stock one and see if all is well first i gues.. Lastly - there is a fuel level sensor and a sub level sensor that i have no idea where it would connect to and i think i will leave that with my auto pcm also.. Any suggestions would be greatly appreciated and if the car works the way i dream it will without my emanage i will post my wiring and info if not i will probably kill myself and u will not hear from me... I dont want to spend money on a standalone and i dont want a five speed not yet... i paid 75 for the evo ecu and 60 for the extension harness for it.. ITs part is mn191022....
I plan to phase the emanage out ofcourse and essentially use the evo ecu and its knock sensor for added protection. plus i dont want the blue box in my glove when im getting tickets ha. I think the evo ecu will be as reliable as the stock ecu being that it wont have any of the trivial glitches the emanage has and it has just about as much functionality as a standalone but with 1000 percent ease of use that we all want... I am shooting to try this this week but the latest is 2 weeks from now.. I have heard with certainty u can do this dual ecu mod but ive yet to see someone with proof or even running the setup as we speak so here i go..
ps.. I dont have the knock sensor yet if anyone has the evo 8 sensor let me know