Hi!
I am looking for some advice please. Car failed on emissions today, I am a bit annoyed about this as I only had a new cat in 2015 (and I think sensor too but haven't found the paperwork yet) and in June this year new centre and back silencers. But I got these done at different places. Which place should I take it back to, maybe I can get warranty? When the car was serviced in August no error codes came up. When the exhaust was done I had asked them to find out the cause of hesitation under load (now improved but still unsolved) they changed a corroded hose and the exhaust and said further investigation needed! I have noticed that it pops on deceleration.
Test results: ok on natural idle, 0.6 on second fast idle and 0.9 on fast idle.
Car is yr 2000 2.0 8v GTI, probably not your favourite "GTI" but aside from this it's a great car, have had it many years. What to do??? And I just got new tyres for it :-(
Or should I take it somewhere completely different for an unbiased view?