Hi
I have been going through all the post i could find, but nothing helps :/
I have 2003 MG TF 135 and cannot pass MOT due to emissions, CO to be precise. I have replaced almost eveyrhing I could, but it still doesn't pass.
On my last try i got these results (translation - measure | low revs| limit | revs > 2000 | limit):
I have started with the value being 0.8 or so, but cannot get it past the threshold.
I have currently changed:
Spark plugs - new
Air filter - new
fuel filter - new
O2 sensors new, both
CAT - new (not to the genuine one nap cak10426)
injectors - used but correct for the model (there were blue injectors before, but after a lot of googling i saw that i should have black ones since mine is nonvvc)
Air flow sensor - new
Took 30km drive before the test with 4000+rpm and engine was around 100 C when testing.
The strange thing is that on low revs the value is 0.4 and on high revs it jums to 0.6. Did anyone experiance something similar to this?
I have access to OBD scanner (generic, not pscan) but it doesnt give me much info apart from if i check noncontinuos monitors, there is an issue with Manufacturer defined - Monitor ID MID $06 and $02.
And if I choose Emissions Test in the app, CAT and Oxygen always say NOT PASSED.
Any help or ideas would be appreciated, since i'm starting to lose my hope.
I have the second exhaust controller disconnected, because it would not open right pipe even when Revs are high.
Hi