I got a CEL last week (2005 Accord coupe LX 4cyl auto) but it ended up turning off after a few days. I checked the codes today (after the light turned off) and ended up with the following.

Vehicle VIN:
Vehicle Manufacturer: Honda
Vehicle Calibration ID:

Current Fault Log
------------------
P0139: O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)

Pending Fault Log
------------------
ECU reports no pending faults

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P0462: Fuel Level Sensor Circuit Low Input

End of report.

AKA- P0139 and P0462

I have the secondary o2 sensor on order to clear up the first code but I can't find any information on P0462. Anyone have any experience with it? It sounds isolated from the first code in my opinion but I've been wrong before... Thanks in advanced!

 

P0462 likely means a short somewhere in fuel level sensor circuit. It could be faulty sensor, wiring, connector, or less likely a faulty ECM.

Check is to access the fuel sensor connector in the trunk, disconnect connector, turn ignition switch On, reset ECM w/ scanner, and see if code P0463 is set. This would indicate correctly that fuel level sensor circuit is open and indicate that fault must lie in the fuel level sensor, which should be replaced. If P0462 is set again, the short lies in wiring, connector, or ECM.

The above is a shortened diagnostic. The actual diagnostic is much more extensive. You may want to purchase your own shop manual from ebay seller automanualsource ($21.99), a good vendor.

good luck

 

Excellent advice! I'll check it out this weekend. Thank you

 

In case anyone comes across this same issue.... Replacing the ho2s cleared up both codes.