emissions

  1. Ian W

    MOT Fail - Emissions Help

    Had my 2001 AMK, (111K) in for the MOT today and it has failed on emissions, don't have the print out sadly but the chap said it failed on all 3 tests and was well off the limits. Car is running a Pipewerx 3" system with a sports cat that is 18 months old, a new Bosch post cat lambda was fitted...
  2. palmgrooves

    Ceramic vs. Metallic core catalyst

    So I'm having a chat with my mate about cats. He insists that you can just bash out a metallic core cat and to check any TFSI forums. However, when I look down my *ina special sports cat, it's clearly metallic, it feels solid that any poking at it will only bend the rolled up sheet of metal...
  3. johnlyckdal

    Fail To Pass Emissions

    I recently went to get my car inspected and it failed on emissions. The values are as following: CO: 5.5 (0.5) HC: 403 (200) CO: 2500rpm 1.0 (0.3) Lambda: 0.74 (0.97-1.03) Read around for a little while and seems like im running very rich, (hence my poor fuel economy), and most likely need to...
  4. D

    TDI 140 - DPF or Cat

    Hi guys, Just bought a 2007 A4 TDI 140 BRE, just wanted to double check if this is a DPF or a Cat? Build sheet contains "7GN - Emission Standard EU4, DPF preparation", which to my understanding meant prepared for DPF, but not fitted. I believe 7GG means one is fitted. The unit appears to be...
  5. L

    MOT Fail

    ****** thing failed its MOT... On emissions of all things! They used the plate value (which is stupidly low, thanks Audi!), but would have failed if using the default value of 3... only just! Any idea what I can do to get this number down for a retest? Garage used some 44k fuel additive but...
  6. Elroy_starr

    Nox sensor

    Hi guys, New to the group so go easy on me Finally got an A3 in March after years of wanting one! 8pa 1.6fsi sport, very tidy car and real happy with it (although a little slow). Got my first ever check engine light in 10 years of driving over the weekend, finally a chance to use my obd scanner...
  7. Siondc

    MOT Fail

    So my car failed it’s MOT on the emissions. I serviced it 2 days before and ragged it to the garage. It’s an AMK on 145,000. The results were: Fast Idle Engine speed: Limit 2500-3000 Actual 2820 CO: Limit <0.3 Actual 5.1 HC: Limit <200 Actual 188 Lambda: Limit <0.97-1.03 Actual 0.87...
  8. T

    Audi A6 C5 2.7t Allroad - Emissions MOT Failure - Help please

    Hi folks, I know this isn't the most exciting thread but..... I have an Audi Allroad 2002 2.7t which is failing on emissions. I enjoy this car so much but am risking having to scrap it because I can't get it past the MOT emissions. Is anyone able to help my diagnose the issue or point me in the...
  9. O

    2010 Audi A3 2.0TFSi (8P1 Chassis) - Emissions Control System warning light permanently illuminated

    Hi guys, I hope the festive season is treating everyone well! I’m hoping someone might be able to shed some light on this issue, or at least suggest on how best to proceed. The car - 2010 Audi A3 2.0TFSi (8P1 Chassis) The backstory - I returned to my car after work about a month back, turned...
  10. A

    Failing on Emissions...

    Hi guys i have a 2007 s3 and it is failing on emmisions for NCT (ireland) 0.68% on high idle and pass rate is 0.20% used diptane and everything and had the engine hot before test im wondering could it be the cat that is gone and if so can a universal cat be put on the exhaust system for the...
  11. Craig Kelly

    Lambda sensor nightmares / emissions problem - ongoing

    Hi guys hope you're all good, I wonder if anyone can help me out here, my A3 1.8T recently failed it's MOT on emissions - running rich. I took it to an Audi specialist and they gave me 2 codes and told me to replace the Cat and the pre-cat Lambda sensor. The original fault codes were: 16514 -...
Top
Back