What causes fault code P0267?

• Most likely: Short to ground in the wiring harness for injector 3 • Likely: Faulty fuel injector (internal short/low resistance) • Possible: Corrosion or poor connection in the injector connector • Rare: Internal Engine Control Module (ECM) failure

Powertrain (Engine & Gearbox)Standard EOBD

P0267 - Cylinder 3 Injector Circuit Low

Q: What are the symptoms of fault code P0267?

• Check Engine Light (MIL) illuminated • Engine hesitation or misfire on cylinder 3 • Reduced engine performance • Increased fuel consumption • Vehicle may enter 'Limp home mode'

Q: How do you fix fault code P0267?

STEP 1: Inspect the connector for injector 3 for signs of corrosion or loose pins. Clean as necessary. STEP 2: Measure the resistance of the injector using a multimeter (connector unplugged). Normal values are typically between 11–18 Ohms (check OEM specs). If resistance is near 0 Ohms, the injector is shorted. STEP 3: Inspect the wiring harness between the injector and the ECM for chaffing or shorts to ground. Perform a continuity test. STEP 4: Use an oscilloscope (or a Noid light for basic testing) to verify the triggering pulse from the ECM while the engine is cranking/running. STEP 5: If wiring and injector are confirmed good, the fault may lie within the ECM driver circuit.

Last updated:1 February 2026

Related:Fuel Injector Cylinder 3, Engine Control Module (ECM), Wiring, Fuel Rail

System

Powertrain (Engine & Gearbox)

Related Fault Codes

P0200

Injector Circuit Malfunction

P0201

Cylinder 1 Injector Circuit Open

P0202

Injector Circuit - Cylinder 2 - Malfunction

P0203

Injector Circuit - Cylinder 3

Technical Description

P0267 is set when the Engine Control Module (ECM/PCM) detects a lower than expected voltage in the control circuit for the fuel injector of cylinder number 3. The ECM monitors the voltage drop across the injector. When the ECM driver grounds the injector to open it, the current flow is expected to be within a specific range. If the circuit experiences low resistance or a short to ground, the voltage drops below the manufacturer-defined threshold. This disrupts fuel delivery and cylinder balance, often resulting in misfires.

Possible Causes

Short to ground in the wiring harness for injector 3

Faulty fuel injector (internal short/low resistance)

Corrosion or poor connection in the injector connector

Internal Engine Control Module (ECM) failure

Symptoms

Check Engine Light (MIL) illuminated

Engine hesitation or misfire on cylinder 3

Reduced engine performance

Increased fuel consumption

Vehicle may enter 'Limp home mode'

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P0267 - Cylinder 3 Injector Circuit Low

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P0267 - Cylinder 3 Injector Circuit Low

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