PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

P0430 Code

Old Jun 1, 2003 | 09:27 AM
  #1  
Z28-2000Chuck's Avatar
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Default P0430 Code

Kept getting P0430 code so I installed O2 Sims.
I'm still getting the P0430 code but I can see
on the scanner the the rear O2 sims are working.
What else could make it throw this code???
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Old Jun 1, 2003 | 09:52 AM
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Default Re: P0430 Code

If it's not the sensors, it's the catalytic converter. P0420 and P0430 are bad cat codes (unless O2 sensors are bad).
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Old Jun 1, 2003 | 09:47 PM
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Default Re: P0430 Code

Thats what I thought the rear O2 sims were supposed to stop. The P0430 code still comes up with the sims in and working. I know the code is the cat but sims are supposed to tell computer it is working. Nothing else could make P0430 come on?
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Old Jun 2, 2003 | 03:58 AM
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Default Re: P0430 Code

Maybe the sims are not working correctly?
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Old Jun 2, 2003 | 08:19 AM
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Default Re: P0430 Code

O2 sensors, sims, or cats, what else is there?

I'd get rid of the sims and delete the codes.
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