HONDA P CODES (POWERTRAIN) P0400 - P0499

My Car Is Running A P0420 Code. My Exhaust Manifold Clearly Has A Crack Between The Manifold Gasket And The 1st O2 Sensor. Is It Possible...

A Couple Of Days Ago My Check Engine Light Came On. Plugged A Scanner In And Got P0420, But That Was It, No Other Info. Google Says...

1997 Honda Civic 100040 Mileages. My Check Engine Light Was On. The Diagnostic Trouble Code Is P0420 Catalyst System Efficiency Below...

I Am Stumped, I Used A Scanner To Read The Code And Then Erased It Two Days Ago. I Figured It Would Come Back Since It Is Low Catalyst...

Someone Said I Need To Replace The Catalytic Converter. Looking For Your Suggestions.

My Civic Had A Water Pump Pulley Failure, The Pump Hub Broke Off, Which Was Covered By A Recall And Still Under Warranty. I Drove The Car...

These Codes Have Been Coming Up Intermittently For A Year And Stay On For About 100 Miles Then Go Off. The Check Engine Light Is Coming On...

Light Keep Coming Back How Do I Fix This Engine Code P0497?

A Month Ago Got A Light Saying To Check Fuel Filler Cap; Then Couple Days Ago The Cel Came On. Okay, Most Likely The Cap. If I Put A New...

I Have A 2000 Honda Odyssey Ex 124000 Miles With Automatic Transmission. I Am Assuming My Problem Is With O2 Sensor On Bank 1, My Question...