What does code P0430 mean on a Ram and is it safe to drive?
P0430: Catalyst System Efficiency Below Threshold (Bank 2). Here's what it means on your Ram, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Same as P0420 but for bank 2. The catalytic converter on bank 2 is not operating efficiently.
Common causes for your Ram
- Failed catalytic converter (bank 2)
- Faulty O2 sensor(s)
- Exhaust leak
Symptoms
- Check Engine Light
- May fail emissions
Typical fixes
- Replace bank 2 catalytic converter
- Replace oxygen sensors
- Repair exhaust leaks
Repair cost range
For a Ram, repairs for P0430 often fall between $400 and $2400, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Ram
Ram HEMI P0430 mirrors P0420 on bank 2. Since both catalysts are accessed during the same repair, most shops recommend replacing both when either has failed on the 5.7L HEMI.
Most commonly affected models
Ram 1500 5.7L 2009–2018