Hi all, I've wired up a ej18 into a jet boat, it starts and runs okay and revs fine on the spot with no load, when you chuck it in the water and go to take off it will limit around 2000 revs and then rev out, will do it again when you come off the throttle too. I have hooked up the check light and it seems to be running with check light on, its not the air flow metre as have tried another one. Is there something that needs tricked on these ecu's? Also does anyone know what ecu pins are the ones that need bridged to trigger diagnostic mode. Motor has all sensors but the purge control. Has tps, 02, maf, and coolant sensor, was running fine in the car before going into boat..
Any idea's?
one other thing. Do the check lights on these come on when u turn key on for as long as pump primes and then goes off?