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bslags -> PLease Help 2 Catalytic Converters bad, codes P0421, P0431, P1557, P1127 (3/27/2008 8:23:34 AM)
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I need some help, i have an A6 2002 Quattro 6speed manual, 98,000 miles, and the dealership is telling me that both my catalytic converters are bad. They quoted me $3,200 to replace them.
The questions i have is, do these codes mean that my O2 sensors are bad or is the dealership telling me the truth?
The P0421 and P0431 are "Warm up catalyst bank 1 & 2 efficiency below threshold sporadic. Could this be the O2 sensors?
P1127 is long term trim mult. bank, system to rich.
I have a cold air intake (LLTEK), APR Chip and APR cat back exhaust.
Please help me understand if i am about to be screwed by the dealership. And also if anyone knows of any aftermarket Catalytic Converters for an 02 A6 Manual Quattro. All i can find are for Automatics?
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