Trouble Code PO430
dltbird96
03-10-2005, 10:30 AM
My engine light came on.(again)..so I hooked a scanner up to the DLC port on '96 Tbird...the code came back as PO430..when I looked it up it was defined as, Catalyst Efficiency Below Threshold (Bank 2). I have a feeling it refers to the Catalytic Converters. Am I correct in this assumption...need some help please..thx
thunderbird muscle
03-11-2005, 01:08 PM
If it said Catalyst it probably does.
dltbird96
03-11-2005, 04:04 PM
It figures..lol thanks
flewthecoupe
03-11-2005, 05:53 PM
Could be several possible causes. Bad fuel is one. Just having poured SeaFoam or other intake/fuel system cleaner into the the engine is another. Reset the code and see if it comes back. If it does, replace your upstream O2 sensor before you start throwing new cats at it.
dltbird96
03-13-2005, 09:53 AM
I was thinking about checking th O2 sensors as well, now that you mention it, I will.. thanks alot...
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