2ginevo8
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2ginevo8 [2010/11/16 09:44] twdorris |
2ginevo8 [2024/03/15 11:16] (current) |
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| ====== Running a 2G DSM ECU in an EVO8 ====== | ====== Running a 2G DSM ECU in an EVO8 ====== | ||
| + | **__NOTE__: THE INFORMATION ON THIS PAGE IS DATED. THE INFORMATION BELOW IS BASED ON DOING YOUR OWN WIRE SWAPS USING A PLUG-N-PLAY HARNESS ADAPTER. WE NOW PROVIDE A MODIFICATION SERVICE TO MAKE A 2G ECU PLUG-COMPATIBLE WITH AN EVO8 HARNESS. WHEN USING A 2G ECU THAT'S BEEN MODIFIED LIKE THIS, MUCH OF THE STUFF LISTED BELOW CAN BE IGNORED.** | ||
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| This used to be a popular swap for a while back when the EVOs were new. The interest seemed to die down a bit as guys started playing around with ECUFlash and EVOScan. But for some reason, we're getting more and more requests for this information lately. | This used to be a popular swap for a while back when the EVOs were new. The interest seemed to die down a bit as guys started playing around with ECUFlash and EVOScan. But for some reason, we're getting more and more requests for this information lately. | ||
| So I thought I'd put this page up to help guys get the ball rolling. | So I thought I'd put this page up to help guys get the ball rolling. | ||
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| + | FWIW, I run with a 2G ECU in my own daily driver EVO8 using the same information below. It all works very well. Now that the fans have been addressed (see below), I have absolutely no problems driving the EVO8 on a 2G DSM ECU. It drives just as well as it does on the stock ECU. | ||
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| Obviously, you need to swap a few wires around on the ECU harness. This is the list of the main things that need to be re-ordered. | Obviously, you need to swap a few wires around on the ECU harness. This is the list of the main things that need to be re-ordered. | ||
| - | **Evo harness** -> 95 ECU | + | **Evo harness** -> 95-97 DSM ECU |
| **22** -> 8 Swaps Fuel pump relay and AC relay control \\ | **22** -> 8 Swaps Fuel pump relay and AC relay control \\ | ||
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| **10** -> 23 Inverts coil control for proper firing order \\ | **10** -> 23 Inverts coil control for proper firing order \\ | ||
| - | **23** -> 10 | + | **23** -> 10 (LEAVE 10 AND 23 ALONE IF YOU'RE USING A 97 ECU...DO NOT SWAP) |
| - | **32** -> 20 Moves condensor fan control to ECU \\ | + | **32** -> 20 Moves condensor fan control to ECU (NO LONGER RECOMMENDED)\\ |
| - | **34** -> 21 \\ | + | **34** -> 21 (NO LONGER RECOMMENDED)\\ |
| **NOTE:** Before wiring pins 32/34 to 20/21, read the fan control section below for a different approach that works better. | **NOTE:** Before wiring pins 32/34 to 20/21, read the fan control section below for a different approach that works better. | ||
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| 58 JUMPER TO 89 Do not swap, splice 89 (crank signal) to 58 (tach input) for proper tachometer operation. | 58 JUMPER TO 89 Do not swap, splice 89 (crank signal) to 58 (tach input) for proper tachometer operation. | ||
| - | 56 Cut this wire, run a wire from 56 at the 95 ECU to pin 1 at the data link connector. Cut pin 1 wire at DLC, do not splice this in. | + | 37 Cut this wire. It provides the ECU with a power steering pressure switch indication. This is used to raise idle when you turn the steering wheel. But it causes more problems than anything else when running a 2G DSM ECU. Just cut it. It's not needed. I have no dips in idle when turning my steering wheel with this wire cut. |
| + | 56 Cut this wire, run a wire from 56 at the 95 ECU to pin 1 at the [[https://www.ecmtuning.com/images/forums/obdiiconnector.gif|OBD2 port in the car]] (note that the image is of the OBD2 connector in the car). Cut pin 1 wire at OBD2 port, do not splice this in. You want the 95 ECU to be the only thing connected to this pin on the OBD2 port. | ||
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| You can do that with some custom direct access files. Download these files: | You can do that with some custom direct access files. Download these files: | ||
| - | [[http://www.ecmtuning.com/wiki/_media/evo8-fan-ctrl.properties|evo8-fan-ctrl.properties]] | + | [[https://www.ecmtuning.com/wiki/_media/evo8-fan-ctrl.properties|evo8-fan-ctrl.properties]] |
| - | [[http://www.ecmtuning.com/wiki/_media/ac-fan-2g.properties|ac-fan-2g.properties]] | + | [[https://www.ecmtuning.com/wiki/_media/ac-fan-2g.properties|ac-fan-2g.properties]] |
| Save each into the following directory: | Save each into the following directory: | ||
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| Once that's done and you have verified the wiring above is 100% correct, you should be all set to start it up! | Once that's done and you have verified the wiring above is 100% correct, you should be all set to start it up! | ||
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| ==== Idle control ==== | ==== Idle control ==== | ||
| - | The EVO ISC motor must provide more airflow per "step" because default operation with a 2G DSM ECU results in idle surges as the car starts to move. You can disable this using the patch listed below. | + | The EVO ISC motor must provide more airflow per "step" because default operation with a 2G DSM ECU results in idle surges as the car starts to move. You can disable this using the patch listed below (you'll want to grab the moving idle disable file towards the bottom). |
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| + | [[https://www.ecmtuning.com/wiki/direct_access_changes|Custom Direct Access Files]] | ||
| - | [[http://www.ecmtuning.com/wiki/direct_access_changes|Custom Direct Access Files]] | + | You may also find that having the power steering pump signal connected to the ECU can cause crazy ramps up in idle too. To "work around" that, simply disconnect the wire leading to the pressure sensor on the power steering pump. That way the ECU will simply never "see" this signal and won't respond to it. |
| ==== Injector scaling and default timing/fuel maps ==== | ==== Injector scaling and default timing/fuel maps ==== | ||
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| The following files will be most useful to someone looking to confirm the information above or to find a new way to approach some of the issues. | The following files will be most useful to someone looking to confirm the information above or to find a new way to approach some of the issues. | ||
| - | [[http://www.dsmlink.com/images/forums/rreevo8pinout.pdf|EVO8 pin out]] \\ | + | [[https://www.ecmtuning.com/images/forums/rreevo8pinout.pdf|EVO8 pin out]] \\ |
| - | [[http://www.dsmlink.com/images/forums/2GECUPinout.pdf|2G DSM pin out]] \\ | + | [[https://www.ecmtuning.com/images/forums/2GECUPinout.pdf|2G DSM pin out]] \\ |
| - | [[http://www.dsmlink.com/images/forums/evo8mfi.pdf|EVO8 MFI schematic]] \\ | + | [[https://www.ecmtuning.com/images/forums/evo8mfi.pdf|EVO8 MFI schematic]] \\ |
| - | [[http://www.dsmlink.com/images/forums/2GECUMFI.pdf|2G MFI schematic]] \\ | + | [[https://www.ecmtuning.com/images/forums/2GECUMFI.pdf|2G MFI schematic]] \\ |
| - | [[http://www.dsmlink.com/images/forums/evo8cooling.pdf|EVO8 cooling schematic]] \\ | + | [[https://www.ecmtuning.com/images/forums/evo8cooling.pdf|EVO8 cooling schematic]] \\ |
| - | [[http://www.dsmlink.com/images/forums/2gcooling.pdf|2G DSM cooling schematic]] \\ | + | [[https://www.ecmtuning.com/images/forums/2gcooling.pdf|2G DSM cooling schematic]] \\ |
2ginevo8.1289918667.txt.gz · Last modified: 2010/11/16 09:44 by twdorris
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