Check Engine Light Codes P0432/P0422
P0422 - Main Catalyst Efficiency Below Threshold (Bank 1)
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
I've cleared the codes often and within 15 restarts they reappear again with the CEL staying on till I clear it again.
Work recently done:
new battery
new Bosch spark plugs +2
New air filter
Cleaning of the MAF with CNC cleaner
High test gas only
Wagon runs strong with no hesitation at all but the CEL reappears with the same messages:
P0422
P0432
Help with any suggestions at this time!
ohlord
Anyone with a link to those mercedes universal cats that run about 60 bucks apiece?
Are they rattling?
ohlord
50 bucks
call first to confirm part for right and left side.
eastern makes a lot of the oe replacements so quality is par.
anyone have a better supplier?It looks like they also have the whole system o2 sensors and all.
good luck
ohlord



