My 92 Civic with 179k miles still passed dyno test in SoCal. 2nd 92 passed 2
years ago. They still have original cats. I read in the Registers a few years
back that 50% of the cat would be no good after 40k miles.

SR-71 wrote:

> I'm curious, in your experience, what life would you expect out of the
> original Honda Catalytic Converter?
>
> More specifically, here's my background FYI:
> 1998 Accord V6 with 145000 miles, half freeway, half stop-and-go driving
> everyday for two hours total a day.
>
> Recently, the MIL was on with 3 codes:
> P0401(67) - EGR Insufficient Flow Detected
> ?????(90) - EVAP Control System Leakage
> -Two codes transpose to (90).
> P0420 - Catalyst System Efficiency Below Threshold
>
> I had the local Honda dealership perform the EGR port clean for free under
> the past recall. But that night after the service, I received P0420 again.
> I returned to Honda hoping I could find another item under warranty, but no
> luck.
>
> I've been told that I need a new catalytic converter. Obviously, I
> questioned them as to how they arrived at their conclusion, confronting them
> about checking more than just the MIL, e.g. exhaust manifold pressure, etc.
> The response was that it was not necessary, and the computer only test was
> very accurate.
>
> I do plan on doing plenty of testing myself before buying a new converter,
> but the part that struck me was the fact that I was told repeatedly that
> 145K mi was "well past" the lifetime of the converter.
>
> Any thoughts?
>
> Thanks in advance.