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.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Open in sensor or wiringCommon
Parts involved
- Air System Flow Sensor B1
P2430 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.