P0261

What does P0261 mean?

P-code P0261 means "Injection Pump Fuel Metering Control ""B"" Intermittent (Cam/Rotor/Injector)". It is a generic OBD-II diagnostic trouble code (DTC) in the fuel system. The injection pump fuel metering control ""b"" intermittent (cam/rotor/injector) signal is absent or intermittent, preventing the control module from monitoring this parameter. This code can be monitored, but service is recommended to prevent escalation. This code applies to OBD-II compliant electric and hybrid vehicles.

Possible Causes

• Sensor has completely failed and produces no output signal
• Disconnected or severely corroded electrical connector
• Broken wire in the signal path between sensor and module
• Control module failure unable to process the incoming signal

Recommended Actions

1. 1 Note the alert and schedule a diagnostic appointment when convenient
2. 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside P0261
3. 3 Inspect the fuel system component and its wiring for visible damage
4. 4 Check for water intrusion in connector areas and clean contacts if corroded
5. 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
6. 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement

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