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Air / fuel mixture running rich can remap sort ?


Scott370z

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Air fuel mixture re-mapping for correct mixture after hi flo cats and invidia n1 exhaust upgrade fitted ? Will this set fuel air mixture for correct emissions to pass mot ? My car is running very rich as exhaust tips show very black appearance.  Advice needed on this thanks in advance.

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If your issue is not being able to pass an MOT with the new cats in place, you have two options:

1. Get the cats red hot before attempting the emissions test, or;

2. Put the stock cats back on for the test. 
 

Hi-flo cats are well known for not passing MOTs sadly. Ignore a remap just to pass, these are your two choices. 

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