The Lemon IndexThe secondary air pressure sensor reading doesn't look right.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Failed pressure sensor. Then: leaking hose; failed pump.
Owners named P2431 in 5 complaints to the U.S. government, most often on the Volkswagen Jetta.
Cars owners report it on
Complaints that name P2431, by model. Raw counts, not a failure rate: popular models get more complaints.
The details
What P2431 means
The secondary air pressure sensor reading doesn't look right.
Can I drive with P2431?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Common causes of P2431
- Failed pressure sensor
- Leaking hose
- Failed pump
A shop should confirm the cause with a scan and tests before replacing parts.
Related codes
P2432 P2433 P2422 P2440 P2441 P2442 P2443 P2444
Quick answers
What does P2431 mean?
Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 1). The secondary air pressure sensor reading doesn't look right.
Can I drive with P2431?
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 P2431?
Failed pressure sensor; Leaking hose; Failed pump.
Counts: NHTSA owner complaints whose text names P2431. 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.