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High CO , need advice :-)
#1
Got a bit high values on the MOT, before  I started bouth CO and Lambda was to high, afther some tingelig the Lambda value was ok ..

Engine :KFX (TU3JP)/KFW (TU3JP)
Car : 2000 Berlingo Van ...

Did a full service on the engine ( Oil, oil-filter, air-filter, plugs )
Also changed the lambda sensor ( only one ), and air temp sensor, engine temp, pressur sensor inside intake ...
New Catalysator, and checked the rest of the exhaus for leaks ...

Got a readout from the ODB2, and it told me there was a break in the wires for the lambda, was reset but came back ...
Next I checked the wires from the ECU plug ( SL96 ECU ), found the wires (pin 4 and 22 ), bouth close to 0 ohm .. so no break

Then messured the output from the lamda ( between battery - and sensor wire >> was between 0,8 and 1,25 V ..
THEN I checked between + and - on the sensor itself >> there it was between 0,55 and 0,8 V??

Isn't the sensor minus and car minus on the same level/potetial  ??, messuring between minus sensor and battery earth gave me 0,4V, was expecing close to 0V Huh 

Any advice :-) , ned to stabilate the CO below 0,5 ....

Arne Kjetil
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