421 Cammed 172
My 172 has failed its MOT today.
Failed on a couple of minor things and then the emissions. Values are quite high and so could do with some advice if possible?
Fast Idle Test :
CO - 9.42% Vol
HC - 953 ppm
Lambda - 0.73
2nd Fast Idle Test
CO - 11.66% Vol
HC - 1865 ppm
Lambda - 0.65
Natural Idle
CO - 8.53% Vol
Will update this as and when i find out more as i will be plugging the RS Tuner is and clearing codes before going for a drive and reporting back new codes.
Just for reference the car had just had the decat swapped off for the MOT. The car is running 421s which are currently unmapped. I have a feeling its definitely the mapping that needs doing to sort it out but would like it confirmed as i dont really have the money for mapping until 28th and thats after my 10 day retest.
Thanks
Failed on a couple of minor things and then the emissions. Values are quite high and so could do with some advice if possible?
Fast Idle Test :
CO - 9.42% Vol
HC - 953 ppm
Lambda - 0.73
2nd Fast Idle Test
CO - 11.66% Vol
HC - 1865 ppm
Lambda - 0.65
Natural Idle
CO - 8.53% Vol
Will update this as and when i find out more as i will be plugging the RS Tuner is and clearing codes before going for a drive and reporting back new codes.
Just for reference the car had just had the decat swapped off for the MOT. The car is running 421s which are currently unmapped. I have a feeling its definitely the mapping that needs doing to sort it out but would like it confirmed as i dont really have the money for mapping until 28th and thats after my 10 day retest.
Thanks
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