P2436AIR System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2436 says the bank 2 secondary air pressure reading is electrically valid but does not match what the system expects. Audi documents the code on the 2017 R8 and R8 Spyder V10: bulletin 2049142 (TSB group 01, 18-56) pairs P243600 with P243700 and has the bank 2 pressure sensor G610 replaced, following the guided fault finding. GM's 2018 tables note that the barometric-quality weighting used for P2431 also applies to P2436, but only on engines with two valves. As on bank 1, the reading is usually compared with ambient pressure with the pump off and on; a drifting sensor, a clogged sensing port or a wrong baro value can all trip it. P2431 is the bank 1 code; P2437/P2438 are the electrical faults.
- What you may notice
- Check engine lamp
- Often stored together with P2437
- Secondary air readiness incomplete
- Likely causes
- LikelyBank 2 pressure sensor drifted or failed (Audi R8 replaces G610)
- PossibleSensing port or hose on bank 2 clogged or leaking
- RareWrong barometric reference value
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.