Author Topic: Mitsubishi Evo 5 no spark fault  (Read 877 times)

Offline Davidol

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Mitsubishi Evo 5 no spark fault
« on: March 07, 2021, 06:39:05 pm »
Hi all, first post on behalf of a mate so bare with me

Bought a Mitsubishi Evo 5 fitted with a VEMs ecu, been running fine until last weekend, mate jumped in passenger seat and car cut out and will not restart. It’s a ex rally car and the wiring in the footwell is frankly shocking so we assumed wire had been dislodged and caused issue but we cannot find the fault. Car runs external twin Bosch fuel pump setup - pumps run but we have no spark

Bit of diagnostics with the multimeter tell us we haven’t got 12v at both the cam position sensor (OEM Mitsubishi) and also the crank sensor (again OEM)

Plugging the laptop in also confirms ecu isn’t displaying RPM when car is cranked using VEMs software

Confirmed the continuity of both plugs back to the ECU so any suggestions on where to go next? Looking at the wiring diagrams it looks like the ECU supplies the 12v directly so is there an internal fuse as all external fuses are fine

Thanks 😊