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AndrewCologne AndrewCologne is offline
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Join Date: Aug 2015
Location: Cologne / Germany
Posts: 85
Originally Posted by AndrewCologne View Post
The only thing is, sometimes after driving when the engine changes to idle, independent from the arduino, the LC-2 sensor controller outputs an error...
Fixed, ... as the control unit from innovate was connected to the relay switching circuit which provided a bit too low voltage/ampere.
Now its connected to where it should be, ... to the same circuit where the eco is connected (->Terminal 87).

Now fine-tuning of the duty cycle regulation/programming is on the to do list for this weekend.
The idle itself ist not oscillating but the sensor voltage reading of the arduino isn't that smooth like in case of a Digi MultiMeter which outputs an almost flat and smooth 2.4-2.5v signal (= 14,7:1 AFR) therefore the sensor voltage output is interpreted incorrectly by the arduino and results in a bit too lean mixture which drops the idle a bit compared to fixed 50% duty cycle resulting mixture/AFR. So the voltage reading paart in the code needs a smoothing/averaging routine ... which I should have taken into account before :-).
911 SC 3.0, 1982, black, US model

Last edited by AndrewCologne; 09-14-2018 at 04:07 AM..
Old 09-14-2018, 03:05 AM
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