P0430- Catalyst Efficiency Below Threshold
Thread Starter
Joined: Aug 2005
Posts: 2,803
Likes: 1
From: Seminole County, Florida
P0430- Catalyst Efficiency Below Threshold P0430- Catalyst Efficiency Below Threshold (bank 2)
pulled the code from my car
is my open cut out tainting my o2's? i didnt think so because its far back (under the back seat)
pulled the code from my car
is my open cut out tainting my o2's? i didnt think so because its far back (under the back seat)
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Naw, I run mine open most of the time at the same location. I think your passenger cat is just toast. You can swap the rear 02's and see if the code changes, but it's most likely the cat.
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Swap sensors... if you pop a P0420 then it's the sensor (code followed sensor)... if it still stays P0430 then it's likely a failing cat.... a bad cat can cause performance loss (if it's clogged)
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Thread Starter
Joined: Aug 2005
Posts: 2,803
Likes: 1
From: Seminole County, Florida
Originally Posted by horist
Swap sensors... if you pop a P0420 then it's the sensor (code followed sensor)... if it still stays P0430 then it's likely a failing cat.... a bad cat can cause performance loss (if it's clogged)
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can you take a pic so i know where they are located or explain(by the cats under the hood in the rear by the muffler?)...i sound like a complete idiot...sorry...
