Fault code p0430

[itcanbdone]

Does anyone happen to know what this code means ? Completely new here thanks

 

[NathanJax]

What year/make/model?

This is posted in the 2015+ section...

 

[itcanbdone]

Oh so it is. I didnt see that on subforum when i posted sorry.
It's a 97 tahoe 4door 4x4.
I dont know how to move it yet.


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[NathanJax]

I moved it

 

[Geoff]

In my experience its a bad cat. If you're in CA be careful which one you buy. I bought one from Autozone and when i smogged it the tech said it was for the 7.4 liter. I did find another smog place that passed me with it though.

 

[itcanbdone]

Is that the catalytic converter? If so do I suffer any performance loss or is it strictly for emissions? thanks for the heads up

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[Geoff]

It can hurt your performance. Its not too expensive to get it fixed unless you're in CA. The cheapest option might be to buy one online and have a muffler shop weld it in. They do make bolt on assembly's for 300-400 bucks that you could do yourself with out welding.

 

[Geoff]

I just bought one online and welded it on myself. Cost about 150$ Its a good idea to do both. It will save you in the long run. The other cat is going bad on mine and I wish I would have done them both at the same time.

 

[ccapehartusarmyINF.(ret)]

or depending on if you live someplace that requires emissions id go catless because having them hinders performance some and having one clogged will hurt performance but not having anyat all improves

 

[itcanbdone]

Well that's good news, because I came from Washington with this rig to here in Montana and upon registering they never said one thing about emissions not once. I'll be glad to take off the Catalytic converter if that's all it does , and in return improved performance? very much so thank you. I mean thank you very much!

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[ccapehartusarmyINF.(ret)]

Montana! one of my favorite states
if you moved to montana then forget about those stupid cats
switch to a catless Y pipe and take the old ones and smash them to little bitty bits
montana has no emissions testing
then you cna either get a a tune to delete the post cat o2 sensors
or there is a few other ways to fool your pcm

 

[itcanbdone]

Oh really? A tune? Any details? Thanks a lot

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[willxfs]

The tune is a pcm tune, your trucks computer. The tuner will tell the computer not to look for rear oxygen sensor inputs and you wont get the check engine light (for bad cats). Google Black Bear tune and read up on that outfit. There are many company's that specialize in this. Several members here have used black bear. The tune can also get you performance benefits. There's a ton of info on this if you google it.

 

[SunlitComet]

if the cat goes missing or malfunctions it will effect the performance. it will certainly fail a smog gas check out right.