OBD-II code · Powertrain (generic, extended)
P2ADF Intake Air System Leak Bank 2
The ECM detects a leak in the intake air system on bank 2. Air entering downstream of the MAF sensor causes lean fuel trim and unmetered air ingress.
Is it safe to drive with P2ADF?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyCracked intake hose between MAF and throttle
- PossibleIntake manifold gasket leaking
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Intake Manifold B2, Intake Hoses B2, Intake Gaskets B2
Related codes
- P2ADCReductant Tank Temperature Sensor B Circuit High
- P2ADDReductant Tank Temperature Sensor B Circuit Intermittent/Erratic
- P2ADEReductant Tank Temperature Sensor B Circuit
- P2AE0Intake Air O2 Sensor Pumping Current Trim Circuit Open Bank 1
- P2AE1Intake Air O2 Sensor Pumping Current Trim Circuit Low Bank 1
- P2AE2Intake Air O2 Sensor Pumping Current Trim Circuit High Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.