p0420

Hello everyone, I'm hoping for your input and opinion about this CAR: Explorer 2013 V6 standard Symptoms: P0430 P0420 which is the catalytic converters are below efficiency threshold. Both sensors readings are about 0.74 constant when car is idling at full stop. Higher than average fuel...

I drive a lot and the last month or so I have been getting a faint oil smell in the cab. I have looked over the car extensively and not found any leakage. I do not smell oil in the exhaust and the oil level is unchanged. my mechanic and I looked over it together and he removed a vacuum hose to...

Hey guys, I've got a trouble code on my 2007 4.6l V8 that is puzzling me. My trouble with it started about a year ago, when I bought the car and within a few days realized that the hood cowl seal wasn't seated correctly, allowing water into the engine bay and past the coil pack boots- right...

I have a 2006 4.6L Explorer. My check engine light came on. I purchased a OBD reader and found that the code was a P0420. I reset the code. I read in the owners manual to see how to get the vehicle emissions ready for emissions testing. I ran the engine through the profile but the OBD still...

Help with Code P0420 - 2007 Explorer (fixed) I have a 2007 Explorer EB that has a check engine code p0420 showing. I believe the issue is with the catylitic converter but I am not sure. I have talked to the Ford dealership and was told the warranty was expired. The part itself cost $1300...

hello everyone i have kind of a weird problem. my 99 explorer sport has had a cold start problem with a lean code on bank 1 forever. we change the o-rings,upper and lower, which fixed the problem. now i have a new cel code p0420: cat efficiency under threshold which cause the truck to...