momotoTTe

"Catalyst System Efficeincy Below Threshhold" Anybody with 42DD DP got this code before? Is the car getting the fault codes because of the "high flow cat" OR do you think my 2-months old cat is dying already?
Thanks for your help...

TTschwing

From reading here I hope! CAT is fine, the readings expected just aren't being met by the rear 02 because of the increased efficiency.. Did you install the 02 angle adapter? This usually cures the issues for most..

momotoTTe

ummm... no, I didn't install the 02 angle adapter. Where can I source the part?

Thanks for your help as always!

TTschwing

McpaudiTT....He was building some...dunno if available yet..

Mike <at> mcpii.com

momotoTTe

Thanks, Steve!

MCPaudiTT - DEFCON 1

should be available in 2-3 weeks.

momotoTTe

a pic?
How much are you planning to charge?

MCPaudiTT - DEFCON 1

Price should be around $40<ul><li><a href="https://forums.audiworld.com/tt/msgs/1792963.phtml">https://forums.audiworld.com/tt/msgs/1792963.phtml</a</li></ul>

momotoTTe

I don't want to miss it when it becomes available?

sTTevo

Just got that code today on on son's 1.8 Jetta. Bad cat, bad rear O2, or what???