MOT Emissions Failure after RS2 Spec

[prj]

Without cats, CO should be in the 0.7% region, HC should be under 100 ppm. Need to get it on VAG com to see if anything is broken.

0.7% will fail on CO in most european countries if the car ever had a cat fitted.

The requirements for a catted vehicle are:
CO < 0.5%
HC < 100
O2 < 1.0
Lambda: 0.97 to 1.03

[Rusty]

Without cats, CO should be in the 0.7% region, HC should be under 100 ppm. Need to get it on VAG com to see if anything is broken.

[prj]

Was the RS2 changes to your ecu done with s2 maf or rs2 maf in mind?

The MAF's are identical regardless.

I don't know what the laws are like in Malta. But in most European countries there is no way in hell you are legally going to pass MOT without a catalytic converter on an ABY engined S2.

[rynaqui]

Was the RS2 changes to your ecu done with s2 maf or rs2 maf in mind?

S2 MAF. Mentioned all spec to him including plugs, RS2 airbox, 1.8T coils etc

[irishs2]

Was the RS2 changes to your ecu done with s2 maf or rs2 maf in mind?

[K Simmonds]

I guess it depends on what the Malta equivalent of an MOT requires, in the UK any car made after 1992/3 needs to have a cat fitted to pass unless you have a 'friendly' garage.

As far as I'm aware there's no requirement to take you car back to a place that's fail it, all that matters is that is passes somewhere.

[Michael S2]

You will fail MOT without a cat... even on standard S2. As said find a friendly garage or install sports cat.

[rynaqui]

Is that legal?

[AQTdriver]

try a different MOT garage...

[rynaqui]

Any advice on this? No cats, new exhaust manifold as well, exhaust is definitely not blowing. Don't have any figures as these were not provided..

It is running a bit rich though as I am running a higher octane I presume than what is required. Would too high an octane cause an emissions failure? Any advice appreciated!