Once again, please Refer to ET Blast #27984
Subject: Catalytic Converter Inspection Clarification-Revised
June 11, 2009.
And BAR's Spring 2009 Quarterly News Letter.
These two spell if out in black and white regarding OBD I vehicles
with after market cats.
Do Not fail an OBD I vehicle that has an OBD II Cat.
Besides they Do Not make OBD I Cats.
BARRY is correct, check for PC, "passenger car"
and TC, for "truck" applications.
For rescinded D numbers, I follow my instincts, which usually means "innocent unless proven guilty".
I am able to easily recognize the differences between most factory and after-market cats from many years of experience ... something that can't really be 'taught', only learned. Judging the age of the welds is more difficult, but I follow my instincts when deciding pre-2009 installation or not.
I have gone the extra mile many times to read the lettering, including, but not limited to: Jacking up the vehicle, wire brushing, wire wheeling, shoving a mirror between the cat and the floor ... whatever it takes to get a view of the lettering. If none of those techniques work (due to welded skid plates, excessive oxidation, welded heat shields, etc.), I punt it or just follow my instincts.
“Never attribute to malice that which can be adequately explained by stupidity.”
Wow! Thanks Barry! That's about the most comprehensive information about CATs that you are ever going to see or was afraid to ask! That's a lot of work putting that sort of info together with sources and everything and I think I speak for all of us when I say THANK YOU!!!
In other news, I found those labeling requirements I was looking for earlier:
For catalytic converters that can be installed in multiple axial orientations (e.g., weld-in “universal” converters), the manufacturer shall affix two labels (on opposite sides of the converter) to ensure likely
visibility after installation. Letters and numbers on the label shall be at least one-half inch in height with spacing and thickness sufficient to make the label easily readable from a distance of at least 5 feet. source: http://www.arb.ca.gov/regact/2007/amcat07/approvalamcat.pdf
Under $20 and with a stick and some zip ties can reach any cat. Maybe a cheap remote control car to make a floor drone. My new policy is going to be take a pic of the cat and attach to work order. I would really like to charge more for aftermarket parts verification too.
It's great, takes a little time to get it in the right spot and get enough light on the cat though. A wireless one would be better but this was so cheap. I was thinking to install a row of them on the dyno to save time. The best part is being able to take a picture and print it out. This is more useful than my $400 Snap-On boroscope. I would recommend some heat resistant wire loom to cover the cable;
That makes way too much sense Barry, how is an average tech who can't remember to take the probe out before pulling the car out going to remember to use it and then find it in the mess they are working in?
Weld them to probe handles and sell for profit! Or would BAR call that modification to sample hose?