Those codes are all pointing at a related issue. A/F ratio falling out of range, heater elements within the O2's out of temp range, EGR sensor or exhaust gas temp falling out of range, etc. There is a few areas to consider...
By
protoj Tuesday at 18:48 4 days
I've just tried changing the display order so newest posts are at the top ... it's quite good reading it that way but you then have to scroll all the way to the bottom to move onto the next thread!
Could we have a duplicate of the next/previous links at the top of the thread too? Save a bit of wear on my ctrl-end keys. ;)