Porsche fault codes
2,794 codes · 25 vehicle records · 190 ECU records · 0 live-data parameters
Codes 2,794
| Code | Description | Brands | System |
|---|---|---|---|
| P21A7 | Cylinder 12 air-fuel ratio imbalance | 6 | Powertrain |
| P21F8 | Fuel control system 'B' too lean at idle bank 1 | 6 | Powertrain |
| P21F9 | Fuel control system 'B' too rich at idle bank 1 | 6 | Powertrain |
| P21FA | Fuel control system 'B' too lean at idle bank 2 | 6 | Powertrain |
| P21FB | Fuel control system 'B' too rich at idle bank 2 | 6 | Powertrain |
| P220100 | Der NOx-Sensor 1 (Zylinderreihe 1) hat Funktionsstörung. | 2 | Powertrain |
| P2227 | Barometric pressure sensor A circuit range/performance | 35 | Powertrain |
| P2228 | Barometric Pressure Sensor A Circuit Low | 42 | Powertrain |
| P2229 | Short circuit to positive or line break | 42 | Powertrain |
| P2230 | Barometric Pressure Sensor A Circuit Intermittent/Erratic | 29 | Powertrain |
| P2231 | O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank 1 Sensor 1) | 36 | Powertrain |
| P2232 | Downstream oxygen sensor signal failure | 30 | Powertrain |
| P2234 | O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 1 | 30 | Powertrain |
| P2235 | O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 2 | 27 | Powertrain |
| P2237 | Upstream oxygen sensor positive current control circuit open | 35 | Powertrain |
| P223D00 | The connection of the pump current of lambda sensor 1 (cylinder bank 2) has a malfunction. | 2 | Powertrain |
| P2240 | O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1 | 34 | Powertrain |
| P2243 | Upstream oxygen sensor reference voltage circuit open | 34 | Powertrain |
| P2245 | O2 Sensor Reference Voltage Circuit Low (Bank 1 Sensor 1) | 31 | Powertrain |
| P2246 | O2 Sensor Reference Voltage Circuit High (Bank 1 Sensor 1) | 28 | Powertrain |
| P2247 | O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1 | 31 | Powertrain |
| P2249 | O2 Sensor Reference Voltage Circuit Low Bank 2 Sensor 1 | 29 | Powertrain |
| P2250 | O2 Sensor Reference Voltage Circuit High Bank 2 Sensor 1 | 26 | Powertrain |
| P2251 | Upstream oxygen sensor negative current control circuit open | 35 | Powertrain |
| P2252 | O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1 | 33 | Powertrain |
| P2253 | O2 Sensor Negative Current Control Circuit High Bank 1 Sensor 1 | 33 | Powertrain |
| P2254 | O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1 | 34 | Powertrain |
| P2255 | O2 Sensor Negative Current Control Circuit Low Bank 2 Sensor 1 | 32 | Powertrain |
| P2256 | O2 Sensor Negative Current Control Circuit High Bank 2 Sensor 1 | 32 | Powertrain |
| P2257 | Air system control 'A' circuit low | 30 | Powertrain |
| P2258 | Air system control 'A' circuit high | 30 | Powertrain |
| P2259 | Air system control 'B' circuit low | 24 | Powertrain |
| P2260 | Air system control 'B' circuit high | 24 | Powertrain |
| P2262 | Turbocharger/Supercharger Boost Pressure Not Detected Mechanical | 27 | Powertrain |
| P2263 | Turbocharger/Supercharger Boost System Performance | 33 | Powertrain |
| P226D | Particulate Filter Deteriorated/Missing Substrate (Bank 1) | 27 | Powertrain |
| P226D00 | The fault memory entry -Particulate filter damaged or substrate missing can be considered a consequential fault of these data memory entries, and does not have to be processed further | 3 | Powertrain |
| P226E | Particulate filter deteriorated/missing substrate bank 2 | 7 | Powertrain |
| P2270 | O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 2) | 38 | Powertrain |
| P2271 | O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) | 37 | Powertrain |
| P2272 | Rich-mixture voltage not reached | 37 | Powertrain |
| P2273 | Lean-mixture voltage not reached | 36 | Powertrain |
| P2274 | O2 Sensor Signal Stuck Lean Bank 1 Sensor 3 | 22 | Powertrain |
| P2279 | Intake Air System Leak (Bank 1) | 33 | Powertrain |
| P2281 | Air leak between MAF and throttle body | 24 | Powertrain |
| P228C | Fuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too Low | 25 | Powertrain |
| P228D | Fuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too High | 28 | Powertrain |
| P228F | Fuel Pressure Regulator 1 Exceeded Learning Limits - Too High | 25 | Powertrain |
| P2293 | Fuel Pressure Regulator 2 Performance | 27 | Powertrain |
| P2294 | Fuel Pressure Regulator 2 Control Circuit | 31 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.