The Lemon IndexThe catalytic converter on bank 2 isn't cleaning the exhaust as well as it should.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Worn-out catalytic converter. Then: faulty downstream O2 sensor; exhaust leak.
Owners named P0430 in 125 complaints to the U.S. government, most often on the Honda Pilot.
Models that report it most
Complaints that name P0430, by model. Raw counts, not a failure rate: popular models get more complaints. Tap a model for its years, mileage and what owners say fixed it.
P0430 by model: P0430 Honda Pilot (43) · P0430 Ford F-Series (14)
Years owners report it on most: 2019 Honda Pilot · 2017 Honda Pilot · 2016 Honda Pilot · 2018 Ford F-Series · 2019 Honda Odyssey · 2019 Ford F-Series
The details
What P0430 means
The catalytic converter on bank 2 isn't cleaning the exhaust as well as it should.
Can I drive with P0430?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
20% of the owner complaints that name P0430 also say the car shakes, runs rough or misfires. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0430
- Worn-out catalytic converter
- Faulty downstream O2 sensor
- Exhaust leak
- Misfires that damaged the converter
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Shakes, runs rough or misfires: 20% of complaints
- Loses power or goes into limp mode: 16% of complaints
- Stalls or shuts off: 14% of complaints
- Warning lights and electrical faults: 6% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0430 most
2019 Honda Pilot (16), 2017 Honda Pilot (13), 2016 Honda Pilot (10), 2018 Ford F-Series (5), 2019 Honda Odyssey (5), 2019 Ford F-Series (3).
Related codes
P043E P043F P0421 P0420 P0440 P0441 P0442 P0443
Quick answers
What does P0430 mean?
Catalyst System Efficiency Below Threshold (Bank 2). The catalytic converter on bank 2 isn't cleaning the exhaust as well as it should.
Can I drive with P0430?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
What causes P0430?
Worn-out catalytic converter; Faulty downstream O2 sensor; Exhaust leak; Misfires that damaged the converter.
Counts: NHTSA owner complaints whose text names P0430. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.