I have a 2.1 WBX engine code MV.

Q1. Various documentation I have gleaned (Pro Training) references the Bosch
Digifant fuel injection system. Some of the pages are showing Digifant on
the footer and some Digifant I.
Were there two implementations of Digifant on the 2.1 WBX? Which would apply
to the MV code engines?

Q2. On the stock exhaust there is a port, upstream from the catalytic
converter for measuring the engine CO. ( at least the documentation suggests
that). I have an S&S headers setup and of course no port before the cat. If
I measure CO and the tail pipe will that suffice or do I absolutely need to
measure upstream?

D
'86 Westy