Worn or stretched timing chain/belt affecting pump timing; Faulty injection pump timing solenoid or actuator; Contaminated or degraded fuel causing pump internal wear; Failed crankshaft or camshaft position sensor; Corroded or damaged wiring to the injection pump or sensors; ECM software issue requiring recalibration; Mechanical wear inside the injection pump

DTC codes / P26xx · Computer and output circuits / P2672

P2672Injection Pump Timing Offset

Q: What does code P2672 mean?

Injection Pump Timing Offset. P2672 indicates that the engine control module (ECM) has detected an offset in the injection pump timing that exceeds the manufacturer's acceptable range. The ECM compares the commanded injection timing with the actual timing reported by the pump or camshaft/crankshaft sensors and sets this code when the deviation is too large.

P2672 indicates that the engine control module (ECM) has detected an offset in the injection pump timing that exceeds the manufacturer's acceptable range. The ECM compares the commanded injection timing with the actual timing reported by the pump or camshaft/crankshaft sensors and sets this code when the deviation is too large.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Rough idle or engine misfire, especially when cold
Reduced engine power or limp mode
Hard starting or extended cranking
Increased fuel consumption
Excessive black smoke from the exhaust

Common causes, most likely first

Worn or stretched timing chain/belt affecting pump timing
Faulty injection pump timing solenoid or actuator
Contaminated or degraded fuel causing pump internal wear
Failed crankshaft or camshaft position sensor
Corroded or damaged wiring to the injection pump or sensors
ECM software issue requiring recalibration
Mechanical wear inside the injection pump

How to diagnose and fix it

Check for related diagnostic trouble codes (DTCs) and freeze-frame data to understand when the fault occurs
Inspect the timing belt/chain for wear, tension, and correct alignment
Test the crankshaft and camshaft position sensors for signal integrity
Verify fuel quality and check for contamination or air leaks in the fuel system
Perform a fuel system pressure and flow test
Check the injection pump timing solenoid for resistance and operation
If all else fails, perform a relearn or calibration procedure for the injection pump timing

Before you replace the injection pump

A stretched timing chain is a common cause that is often overlooked because the engine may still run smoothly.
The code can be set by a faulty camshaft sensor even if the sensor tests good with a basic multimeter; an oscilloscope may be needed.
Low fuel pressure or air in the fuel system can mimic injection pump timing faults and trigger P2672.
Some vehicles require a specific relearn procedure after battery replacement or ECM reprogramming to avoid false P2672.
Always check for technical service bulletins (TSBs) for your specific make and model before replacing expensive components.

Can I keep driving with P2672?

Driving with P2672 is generally not recommended because it can lead to poor performance and increased emissions. Avoid heavy acceleration or towing until the issue is diagnosed and repaired.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.