TEMPERATURE GAUGE AND CATALYTIC CONVERTER

Audi A4

Tiny

Osayomore

June, 25, 2007 AT 5:34 PM

I have 2002 Audi A4 Quatrro V6 3.0 Litre Engine Tiptronic. Odometer with 100,000 miles
I can drive for 3 hours and the gauge stays cool all the time. On other days, the gauge may stay High all the time.
I took it for emission test the other day and failed. Diagnostic test indicated that the catalytic converters -both right and left catalytic converters have low efficiency. I plan to change the timing belt, oxygen sensors(4), spark plugs and wires and thermostat before I change the catalytic converters. Is there anything else that I should change to prevent future damage to the cat converters?

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