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Ecumaster PnP lotus 2zz

Practical Standalone Tuning

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Discussion and questions related to the course Practical Standalone Tuning

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I cannot get the ecu to read my analog input 2# voltage , it always read 0.88 volt. What should I do? It is configured as input to switch on AC clutch.

What voltage do you measure with a voltmeter or oscilloscope? Is this different if the ECU is not connected? Does the A/C clutch switch actually work? Is the ECU providing a pullup resistor to some voltage source?

If using a classic, you'll need to wire in a pullup resistor, or use Cam #2 input and activate it via the software. If using a black, you only need to activate the pullup via the software! If this is already done, check for wiring issues.

I noticed that my analog input 2 is connected to fuel level sensor that is why it is constant. But I dont know which pin is connected to ac switch

Cam #2 is always active

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