Quote:
Originally Posted by Jon Tallis
Unlikely to be idle mode as non-firing cylinders are on the same bank.
|
Not on my engine.
Looking at the engine from rear of boat none firing cylinders at idle are top left and center right. With the engine at idle, removing the plug caps will confirm whether a cylinder is firing or not. The sparks can jump a long way, be prepared for a belt!
The none firing cylinders at idle have neither a spark nor fuel.
As the helm control is put into gear, all cylinders should begin to fire. With the engine running, there is a definite change in note as the gear is engaged and the engine moves to 6 cylinder running. You could have done with an engine check while in gear rather than at idle only.
Idle speed is sensed and held by the engine electronics at approximately 700rpm whether in 4 or 6 cylinder mode.
If you have a none firing injector, it's fairly easy to check whether it's an injector fault or an electronics fault.
