check engine light
67.............P0420.............................. ...............Catalyst system efficiency below threshold
source from my site
http://rh-motorsport.com/forum/index.php?topic=48.0
hope this helps
source from my site
http://rh-motorsport.com/forum/index.php?topic=48.0
hope this helps
I just got the check engine light on today with my 99 accord ex 4cyl. Checked the gas cap as mentioned in ower's manual. What would be the top 2 problems you think of or usually happen? And if I disconnect the negative connector from the battery for 2 minutes, will the light come back on even there is no problem or not come on while there is a problem?? Any advice or opion is greatly appriciated.
Thanks,
Haid
Thanks,
Haid
Haid:
Hi and welcome to HAN. please dont hijack someone elses thread with your problem. Searching the forum can help you find an answer quicker than waiting for a reply.
anyway.... follow the steps here to check the code.
https://www.honda-acura.net/forums/s....php?p=3679376
Hi and welcome to HAN. please dont hijack someone elses thread with your problem. Searching the forum can help you find an answer quicker than waiting for a reply.
anyway.... follow the steps here to check the code.
https://www.honda-acura.net/forums/s....php?p=3679376
Last edited by Misa; Nov 3, 2007 at 03:33 PM.
Hi my first time in forum
My accord 2001 4dr EX is presentig P1167 and P1164 code after replace a o2 sensor. The check engine is light yet.
What is the problem now??
My accord 2001 4dr EX is presentig P1167 and P1164 code after replace a o2 sensor. The check engine is light yet.
What is the problem now??
Last edited by sony_k; Nov 5, 2007 at 12:38 PM.


