440 emission

[Vertuas]

Hi all

I have bad news, my 440 li 1.6 (B16F) failed its mot test today on
emissions

if failed the fast idle test where the %co2 should be below 0.3 my 440
was at 1.8!!!!!!!!

ok so i get the ecu codes, oppps, code reader on the car not working
gggrrrr

can anyone tell me how to test the lambda (oxygen) sensor with out the
ecu codes before i replace it (£75 - yeah right).

also what else can cause it to run rich, mass air flow??? how do i
test that???

Good news it that it passed on everything else, just needs emissions
sorted.

Thanks everyone

Regards

Vertuas