Code P420 / flush gas tank
Hi,
About a year ago I started to get a 401 and 420 codes on my Odyssey 200 LX. Came at the same time. I fixed the 401 by cleaning the EGR path as descrtibed in another thread. Plus used the Techtron fuel cleaner as described. Did reset the codes at that time but the 420 came back after 250 miles. Did try to reset again but it would come back after about 250 miles. Then I tried to not let the fuel tank to go low (not below the half) and the code is gone for more than 600 miles.
Do you guys know what could cause this? I am thinking that this is caused by dirty gas tank. If that is the case how could I get it clean.
Please advice.
Best Regards,
Levon
Hi,
About a year ago I started to get a 401 and 420 codes on my Odyssey 200 LX. Came at the same time. I fixed the 401 by cleaning the EGR path as descrtibed in another thread. Plus used the Techtron fuel cleaner as described. Did reset the codes at that time but the 420 came back after 250 miles. Did try to reset again but it would come back after about 250 miles. Then I tried to not let the fuel tank to go low (not below the half) and the code is gone for more than 600 miles.
Do you guys know what could cause this? I am thinking that this is caused by dirty gas tank. If that is the case how could I get it clean.
Please advice.
Best Regards,
Levon