2001 Honda Accord "p0420" Questions

Code P0420 - what does that mean? The car is an Code P0420 - what does that mean? The car is an 1997 Accord LX with 209,000 miles. Just replaced timing belts, all seals, valve cover gasket, plugs, ...

problema con el codigo p0420 motor 2.3lt ulev v-tec P0420 - Catalyst System Low Efficiency

...and the wires. Your cats are expensive, I don't won't to misdiagnose. Here's a link to your code P0420 solutins. P0420 OBD II Trouble ...

...0420, CODE IN HONDA ODYSEY CAN SOMEBODY TELL HOW TO TRUBLE SHOOT THIS TWO CODE P0401- Bad EGR valve P0420- Most likely cause is a bad O2 sensor(s) at the catalytic converter P0401 is exhaust gas ...

I have a honda accord and I went to Auto Zone and they did a diagnostic check results were P0420 and the following; aa1-A/F ratio concern aa2- air leak near HO2S Heated oxygen sensor aa3- ignition ...

'99 Accord: P0420 and Sometimes Engine Hesitation & Rough Idling Hey, I have a '99 Honda Accord (4 cylinder VTEC) and I had a new gas tank fill-up last week. Ever since then, my car has started to ...

...got 145000 miles on it. I got it scanned. The codes were p1259 vtec system circuit fault bank 1, p0420 catalyst system efficiency below threshold bank 1, and p1457 evap control system leak

code P0420 emission station 1 2000 honda accord se 2.3 i replaced the crank sensor and the distributor and also bought a new catalyst converter. it is very likely the O2 sensors, , check the O2 ...

check engine light I hooked it to a scanner and got two codes.(P0420 catayst efficeincy below threshold)and (P1739 manfacturer control transmission) what does this mean? if you have undser 80,000 ...

i got these two codes: p0420, p0442 on my 2003 honda accord. i discovered that my fuel economy has been quite poor and believe these error codes are responsible for it. i want it solved. these aer ...