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Discussion Starter · #1 · (Edited)
I originally pulled the codes on my 96 GL and got P0420 and P0401. I ran some sea foam and cleaned out the intake. I pulled the codes again and got P0420, P0135, P0141, P0155, and P0161. I then find out the HEGO fuse wasn't even in the fuse box since I bought the car. I "replaced" the fuse, cleared the codes, and put 500 miles on the car. CEL then comes on this morning on my way to work. I pull the codes this time and only get P0430 :???: Any ideas guys? I'm totally lost. Car is running fine...
 

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Cat converter for bank 2 is bad. That's what p0430 says. When the downstream oxygen sensor closely follows the upstream, computer sets the code. Yes, car can run fine with this code. So does my 05.
 

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Discussion Starter · #3 ·
Cat converter for bank 2 is bad. That's what p0430 says. When the downstream oxygen sensor closely follows the upstream, computer sets the code. Yes, car can run fine with this code. So does my 05.
How can you be so sure considering I've just recently had this problem after putting the HEGO fuse in.
 
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