[alfa] Motronic Spider failed emissions

[Simon Body <body@xxxxxxxxxxxxxxxxxxxx>]

Greetings

My 1991 Spider with Motronic fuel injection failed its emissions testing 
for the second time yesterday.
Both times it has had:
   Hydrocarbons ~4x the limit
   NOx ~3x the limit
   CO ~25% over the limit.
Between the two tests, the O2 sensor, filter and plugs were replaced and a 
bottle of fuel injector cleaner run through it  It was a hot engine with > 
20 minutes of good running before the tests. There was no improvement after 
replacing the stuff, in fact everything got about 30% worse !!   I 
interpret the results as the system running rich, but what can be done 
about it?
Help.

Simon



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