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failed emissions

  1. NG900 & OG9-3 Workshop
    Hi I have another problem with my car :( I just failed on MOT. On first attempt it was failed on -Broken front springs -Emisson problems (5 times higher co, high hn, bad lambda sensor reading, etc) The mechanic said that, it's need to change the lambda sensor and the cat.conv. Ok it done. So...
  2. C900 Workshop
    some help here guys would be greatly appreciated! so i failed emissions again on my 1991 saab 900 turbo and its the same deal as two years ago when i failed. My NOx is too high. last year i took the test twice and failed and paid my mechanic two different bills. after the second fail, he took...
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