PowertrainP00E4
CautionSeverity: Caution - get it checked when you can
Exhaust heat exchanger exhaust bypass valve 'A' stuck closed
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 and air metering range, which includes fuel-pressure and camshaft-timing 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 promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, 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 12
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P00E4 | No description available | Powertrain |
| Daewoo | P00E4 | No description available | Powertrain |
| EOBD | P00E4 | Eksosvarmeveksler eksosbypassventil 'A' fastlåst lukket Brand | Powertrain |
| GM | P00E4 | No description available | Powertrain |
| Holden | P00E4 | Exhaust Heat Exchanger Exhaust Bypass Valve Stuck Closed Brand | Powertrain |
| Honda | P00E4 | No description available | Powertrain |
| Isuzu | P00E4 | No description available | Powertrain |
| Land Rover | P00E4 | Exhaust Heat Exchanger Exhaust Bypass Valve Stuck Closed Brand | Powertrain |
| Opel | P00E4 | No description available | Powertrain |
| Peugeot | P00E4 | No description available | Powertrain |
| Saab | P00E4 | No description available | Powertrain |
| Toyota | P00E4 | Exhaust heat exchanger exhaust bypass valve 'A' stuck closed 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 P00Exx codes.