View Full Version : check engine system too rich?


accordv6
07-20-2008, 08:52 PM
2004 Honda Accord v6
52k miles

two code error:
P0172 system too rich (Bank 1)
p0175 system too rich (Bank 2)

What most likely would cause this problem? I want to start searching in the forum before i take it to the shop. My friend told me it can be the o2 sensor that need to be replace. The light would stay on for few days and then it would disappear for about month. Then the light turn back on again, so this is the 3rd time already.

thx, accordv6