Powertrain
generic / SAE
P2437
AIR System Air Flow or Pressure Sensor Circuit Low Bank 2
A general circuit fault on the secondary air injection (AIR) system flow or pressure sensor on bank 2 - the sensor that verifies air pump flow during cold-start enrichment compensation.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 37
Possible causes
- Signal shorted to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–450 €
- Estimated time: 0.6–2 h
- Component: air system flow sensor b2
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012