PowertrainP017100
CautionSeverity: Caution - get it checked when you can
Das Gemisch (Zylinderreihe 1) ist zu mager.
Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions
1What it means in plain English
This code is in the fuel, air and oxygen sensor range, which also includes coolant temperature faults.
2Common causes
- Dirty or faulty mass air flow sensor
- Vacuum or intake air leak
- Weak fuel pump or clogged fuel filter
- Faulty fuel injector
- Faulty oxygen sensor
- Wiring or connector fault
3Can I drive?
Have it diagnosed if the engine runs badly or the code keeps returning. Because this range includes coolant temperature sensors, watch the temperature gauge: if it climbs into the red, or the engine overheats or stalls, stop safely and get professional help.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 3
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P017100 | Das Gemisch (Zylinderreihe 1) ist zu mager. Brand | Powertrain |
| SsangYong | P017100 | System too lean closed loop air/fuel ratio control at limit - system too lean Brand | Powertrain |
| Volvo | P017100 | If the values are less than 0.85 on bank 1, fault trace according to ECM Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Related codes
Browse Pxxx codes or P017xx codes.