![]() Maximum you will detect flat spot when throttling or throttle response will spoil if the air is too much." "One thing is for sure, you will not damage either the ECU or any other part. I emailed a technical advice guy in the US about it (sells performance parts for outboards) and his response was. ![]() Using these measurements, the ecu calculates air flow and adds fuel accordingly" "The Yammie and Merc use a manifold air temperature sensor (MAT), a manifold absolute pressure sensor(MAP), a throttle position sensor (TPS) and a crank position sensor (CPS). The most interesting discussion Ive found is this one. I do wonder what the difference actually is. Ive also seen that the ECU's are listed as interchangeble between the 50's and 60's. ![]() Interesting.I was worried about the engine running lean myself.īut Ive been told that the engine will detect the extra air intake and adjust fuel accordingly.
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