cubeqtio Posted October 25, 2019 Report Share Posted October 25, 2019 Hi, Is it possible to run the older 1.3 ver pnp evo 9 ecu with older evo 4 running stock evo 4 motor. thanks already! Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 25, 2019 Report Share Posted October 25, 2019 If you change your Evo4 wiring to match the Evo9 ecu then it will work fine. Quote Link to comment Share on other sites More sharing options...
cubeqtio Posted October 26, 2019 Author Report Share Posted October 26, 2019 17 hours ago, Adamw said: If you change your Evo4 wiring to match the Evo9 ecu then it will work fine. Ok then. No additional relays needed? as currently all works if using the test feature but when you turn the key to start there is no ignition, injector or fuelpump control. The fuel system prime works though. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 27, 2019 Report Share Posted October 27, 2019 No there should be nothing extra required. Pin 38 on the Evo 4 ecu works in exactly the same way as pin 57 on the Evo 9 ecu. The ecu should ground this pin when the ignition switch is on. Quote Link to comment Share on other sites More sharing options...
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