The dreaded P0420 code

[RemCharger]

Yep caravans don't like bad battery's or connections

 

[4406bbl]

And when you smoke your computer from a shiddy battery or alternator you get a rebuilt computer with a few solder joints fixed and maybe a resistor or diode change...an even bigger joke. They never seem to charge right after that. A GOOD battery is the cheapest insurance.

 

[69a100]

First thing I would do is clean every ground you can find and buy a new battery.

Disconnecting the battery will clear the codes.
Get the battery and charging system right then go from there

And when you smoke your computer from a shiddy battery or alternator you get a rebuilt computer with a few solder joints fixed and maybe a resistor or diode change...an even bigger joke. They never seem to charge right after that. A GOOD battery is the cheapest insurance.

The batt. is 3 months old, O'Reilly's charged it up, load tested good. I cleaned everything when I replaced batt.
Outside of the sensors, O'Reilly's suspect that the reg. has gone bad. The reg is in the computer. And the hits just keep on commin!

 

[padam]

Pretty simple to test the voltage across the battery terminals with the engine running. Should be at least 14 volts

 

[69a100]

Pretty simple to test the voltage across the battery terminals with the engine running. Should be at least 14 volts

I show that until I got a check eng. & gage light while driving and the whole dash goes dead, then it starts to run like crap and dies with a totally dead battery. Batt was dead but load tests good after a charge, so what's killing the batt with a healthy charging system??? Just sitting in the garage earlier Idling all I got was a MAP code, no "loss of batt. voltage" code and I had every accessory running just to put a strain on it. Did I not run it long enough or what? I ran it a good 20 minutes.

 

[padam]

I show that until I got a check eng. & gage light while driving and the whole dash goes dead, then it starts to run like crap and dies with a totally dead battery. Batt was dead but load tests good after a charge, so what's killing the batt with a healthy charging system??? Just sitting in the garage earlier Idling all I got was a MAP code, no "loss of batt. voltage" code and I had every accessory running just to put a strain on it. Did I not run it long enough or what? I ran it a good 20 minutes.

Yeah,troubleshooting is a process. You can guess at stuff and start replacing parts. Sometimes you get lucky and sometimes it gets really expensive.