Emissions fail

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cevini

New member
Joined
Nov 2, 2017
Messages
5
Hello again,
I'm having some problem with my puma engined fiesta.
Can't get it to pass emissions, at idle it is at 180-200 hc (limit 100) and co is 0.2 (limit 0.5).
At load the hc goes down a bit to 120 (limit 100) I think and co hovers around 0.5 (limit 0.3)
Rest of the values are fine and I have no DTC's.
For now I have the stock ECU in it (also have frp remap ecu), a 421 manifold with a universal 200 cell magnaflow cat.
It passed just enough last year, with my other engine (which spun a bearing).
My sparkplugs are not even 1 year old and oil + filter is recently changed.
I tried to fit another 400 cell cat, but it won't really fit right.
 

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