p0430

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...

Let me start by saying this is an awesome forum and has helped me resolve numerous issues to date. With that said I need some advice. I have a 98 explorer 4.0 SOHC which recently developed a p0430 code and a CEL. I have also experienced a decrease in gas mileage from about 16 to now about 11mpg...

Edit: Never mind - my mechanic just told me that here in GA a '97 can have up to two monitors not complete and still pass!! I just got a P0430 code (Catalyst Over Threshold); this happens every year or two and I usually just reset it using my code reader and everything is fine. However, this...

Ok 1997 Explorer, 4.0 SOHC Engine, 105,000 miles I bought this a few months ago. It's my commuter vehicle. My drive to work in the morning is about 1/2 hour Coming home I sit in a bit of traffic so the commute is more like n hour and it's a bit warmer at that time of day here in SoCAl. After...

Hi, I have a 1998 Mercury Mountaineer 5.0L. My check engine light came on and I took the car to autozone to have the codes read. Two codes came up P0340 and P0430. The P0340 was the cam shaft position sensor/synchronizer which I replaced. But the car still has a very rough idle when on park or...