c32 lamda mot fail on emitions, running lean at idle, fix???

[DrEv1l]

Hi all,
My c32 just went for its mot and it failed on emitions. The local garage tweaked up the mixture through star to get it through the test but I want to sort it permanently.

I recently fitted k&n filters but apart from that it is completely stock.

Should I be getting a remap or something? It seems so strange do any advice is very welcome

 

[DrEv1l]

Hi all,
My c32 just went for its mot and it failed on emitions. The local garage tweaked up the mixture through star to get it through the test but I want to sort it permanently.

I recently fitted k&n filters but apart from that it is completely stock.

Should I be getting a remap or something? It seems so strange do any advice is very welcome

Bump, anyone out there able to help me understand what's going on?

 

[BlackC55]

You need to get the lambda values checked on a Star firstly.

 

[DrEv1l]

You need to get the lambda values checked on a Star firstly.

Thanks for coming to my aid again! The values shown on the original failure report were
1.065 and 1.069 where the range to pass was 0.97 to 1.03. You most likely know that but already
It passed on the CO and HC tests of the fast idle and the natural idle test.

Does that help?

 

[BlackC55]

Not really.


Live star data is what is needed firstly.