quadcam boat
Member
Had an idea the other night.
Can a spare ecu be used a knock sensor?
This is the idea.
Hook up a spare ECU to the factory knock sensors.
Feed a simulated constant crank speed into it.....
and measure the change in ignition timing output to indicate knock.
This may be practicle if we can get the ecu to function without going into 'limp home mode' without having to simulate every input that the ecu normally is connected to. If you have to wire every sensor to it, it would be a pain in the arse.
I'm not sure how many inputs we would have to supply the ECU before it will give us an ignition output.
And we need some way to measure changes in ignition timing.
Just a crazy idea of mine, but if it could be easily done, It would be a great tool for tuning aftermarket ECU's. I am assuming the original toyota ECU would be excellent in detecting knock on the engine it was designed and caliberated for.
KDog, what do you think??
Can a spare ecu be used a knock sensor?
This is the idea.
Hook up a spare ECU to the factory knock sensors.
Feed a simulated constant crank speed into it.....
and measure the change in ignition timing output to indicate knock.
This may be practicle if we can get the ecu to function without going into 'limp home mode' without having to simulate every input that the ecu normally is connected to. If you have to wire every sensor to it, it would be a pain in the arse.
I'm not sure how many inputs we would have to supply the ECU before it will give us an ignition output.
And we need some way to measure changes in ignition timing.
Just a crazy idea of mine, but if it could be easily done, It would be a great tool for tuning aftermarket ECU's. I am assuming the original toyota ECU would be excellent in detecting knock on the engine it was designed and caliberated for.
KDog, what do you think??