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Co2 failure. Overfueling

Had my car at what you call a MOT test. Failed because Co2 was to high. even tried to pull the pipe to the fuel dampner. Only one ecu error code number 54 when I checked. (need to replace my ecu soon) (and yes it is a manual) Soo, any tips to what I can do to get the co2 down?

 

Going to check the plugs of course.

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The O2 sensors are definately 'lazy' but what's with the "Air Flow" & "Throttle" readings !! :nono:

 

And the 110+ "Duty Cycle" :shock:

 

I suspect the O2's are not the problem.

the top right are the o2 sensors......

 

th_DSCN1244.jpg

 

hope this help's ...

  • Author

duty cycle?? that goes to 3, something. (lower left)?

And throttle goes to 3,9 at most. (Middle, second from the left)

Air flow goes to around 4 at most. (top. Second from the left)

 

Have no idea what those things are supposed to be...

 

So... were to begin..???

On the log the Throttle & Air Flow sat at 6 all the time!?

The Duty Cycle went to 110.

 

Is the log corrupt?

  • Author

uPLOADING SOME new ones from today. The idle one and two when driving and idling some.

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What could make me faile the CO test when the car is idleing with a lean mixture?? and even when I pulled the line to the fuel dampner??

what size injectors are you running ?

do you still have cats ?

any other upgrades ?

 

eg. if you're running 550cc (or larger) and no cats it's extremely hard and almost impossible to pass any european CO test and in most cases you will have to (temporarily) install cats to pass the test

  • Author

standar injectors. Still got the orginal cats. Only upgrades so far is chip and apexi boost controller + turbo timer.

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