I have an adjustable rpm switch that needs to pick up the signal from the engine. Its says that the signal can be from PCM/ECM, but I dont know what this means.

Does the crank shaft sensor give the RPM signal to the ECU? And is this in the region of 0-5v?

Cheers for any help,

Wayne.

 

ECM = ECU
Or take it off the back of the clocks

 

But does the ECU get its reading from the crank sensor?

 

BTTT

Can I take an RPM signal from the crank sensor?

Come on someone must know? One of you guys with too much money and time will have tried this at some stage. I will find out, and if I find out that someone on here knew and did not pass on this valubale info then I'm sending the boys round!!!

Baseball bats, large hammers and the odd taser gun!!!

Tell me now!!!









(Sorry, just having a moment)