I have this problem still, have taken to the dealer ten times over the last Five years, after one week check engine lights comes back on they again replace the egr and the light comes back on, I have given up on them fixing it can you recommend a solution to this problem, Honda cannot.
brought my 1990 accord for smog but failed due to "wrong timing" so brought it to a mechanic after testing the car with their smog machine...they said i have a bad cat, as i drove off the shop... the check engine light came on and won't go away! every time i start my car, it won't show but after driving a couple of miles.. check engine light will come on again. now i don't know how am i gonna pass smog~
Engine light came on...cause catalytic converter. It has over 250, 000 miles on it now...light still on...never got it fixed. Dealership wanted $80 just to hook it up to computer to see what was wrong with it! I already KNEW!!
This stupid check engine light kept coming back after the mechanics replacing the EGR Ports/catalytic converters and nothing seem to fix it. It is so annoying, now the car is 212000 miles and I am giving up on this issue.
The cat rattled when I purchased the car, allowing me to get it for pretty cheap. I drove it for a while, until the car was so down on power that I couldn't keep up with traffic. I had it repaired for about $300 at a local shop.
The check engine light with code P0402 came on around 112900 miles. This problem is because of the engine computers threshold calculated by the 2 oxygen sensors. Accords from 1998-2001 have a much closer tolerance than other year models so as the catalytic efficiency becomes less, these year model accords trip the check engine light. I tried a CATCOE $310.00 brand catalytic converter and got about 20K miles before the same problem came back. I have sense changed it again using a converter from Autozone $190.00 and after 30k miles no problem noted. Always use Honda O2 sensors or Denso brand. Never Bosh