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Discussion Starter · #1 ·
Hello All
Does anyone know what the fault code 21-2 PGM-FI UNKNOWN code is for?

This code was stored but not current

I believe it might be for the O2 sensor but am not sure.

I have recently fitted a full system and a pc5 to remap it. It has only come on once and I have had it cleared. Just concerned I case it comes back.


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