Powertrain
generic / SAE
P2433
AIR System Air Flow or Pressure Sensor Circuit High Bank 1
Same as P2430 with the signal voltage above the plausible range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 33
Possible causes
- Signal shorted to supply high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–450 €
- Estimated time: 0.6–2 h
- Component: air system flow sensor b1
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012