CO pot
From WikiLEC
Details
The CO (Carbon monoxide) potentiometer is an ECU adjustment to set the correct levels of CO at idle for those engines running open loop (i.e. no O2 sensor). NOTE: The Turbo and NA CO pots are different!
Turbo CO pot (A100E6151F)
A 20 turn 10kohm potentiometer with a series 270R resistor connected between pins 1 and 3 and connected to pins A11 and B12 of the ECU. Turning the CO pot anti(counter) clockwise reduces the resistance and consequently the voltage read by the ECU and reported by ElanScan.
NA CO pot (A100E6224F)
Unknown except all three pins are connected and used by the ECU - if anyone has a spare, Geoff would be interested to see it!
