Possible Cat Problem
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Possible Cat Problem
Posted this in the VAG-COM forum, but no response as of yet.
I've gotten fault code 16806 - "Main Catalyst Efficiency Below Threshold" 3 or 4 times. Guess that means its a real problem, but what is the problem? Do I need a new cat or some O2 sensors or something else?
Car is a '99.5 A4 1.8TQ with Tip.
I've gotten fault code 16806 - "Main Catalyst Efficiency Below Threshold" 3 or 4 times. Guess that means its a real problem, but what is the problem? Do I need a new cat or some O2 sensors or something else?
Car is a '99.5 A4 1.8TQ with Tip.
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