OBD-II code · Powertrain (generic, extended)
P2430 AIR System Air Flow or Pressure Sensor Circuit Bank 1
A general circuit fault on the secondary air injection (AIR) system flow or pressure sensor on bank 1 - the sensor that verifies air pump flow during cold-start enrichment compensation.
Is it safe to drive with P2430?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in sensor or wiring
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–2 h
- Emissions test
- Likely to fail
- Parts involved
- Air System Flow Sensor B1
Related codes
- P2435AIR System Air Flow or Pressure Sensor Circuit Bank 2
- P242DExhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3
- P242EExhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 1 Sensor 3
- P242FParticulate Filter Restriction Ash Accumulation Bank 1
- P2431Secondary Air Injection System Air Flow/Pressure Sensor Circuit
- P2432Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance
- P2433AIR System Air Flow or Pressure Sensor Circuit High Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.