P2672: Injection Pump Timing Offset

On diesels with an electronically controlled rotary or distributor pump, the controller needs to know how far the pump's actual delivery start sits from its nominal position relative to the crankshaft. P2672 flags that this stored or measured offset is wrong or outside the window the software accepts. CARB requires 2010-on diesels to detect injection that is too early or too late. Dodge listed P2672 among the codes activated by the engine-controller update in emissions recall T21 for the 2004–2006 Sprinter; no public maker text gives a threshold. P2673 instead means the timing value was never learned. A driver may notice hard starting, knocking, smoke or reduced power.

Symptoms

• Check engine light on
• Hard starting or rough idle
• Diesel knock, smoke or reduced power

Most likely causes

• Injection pump fitted or re-timed incorrectly after repair
• Faulty pump timing or crank/cam reference signal
• Worn pump drive (gear, belt, coupling) shifting the timing
• Engine control software fault or wrong calibration

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the connector and wiring of the injector indicated
2. Measure the resistance and compare it with the manufacturer's specification
3. Check the control signal with an oscilloscope; on direct injection or diesel engines, leave this to a repair shop because of the high voltages
4. On diesels, check the per-cylinder injection corrections

Good to know

• Repair difficulty: hard
• It can trigger limp mode.
• It affects emissions.

What each character of P2672 means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 6: Control modules and outputs
• 72: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2672?

Drive as little as possible and go to a repair shop. If you smell fuel or the engine is shaking badly, do not keep driving.

What causes code P2672?

The most common causes are: injection pump fitted or re-timed incorrectly after repair; faulty pump timing or crank/cam reference signal; worn pump drive (gear, belt, coupling) shifting the timing.

Related codes

• P2673Injection Pump Timing Calibration Not Learned
• P2674Injection Pump Fuel Calibration Not Learned
• P0216Injector/Injection Timing Control Circuit
• P0251Injection Pump Fuel Metering Control A (Cam/Rotor/Injector)

Sources

• law.cornell.edu: 13 CCR 1968.2
• static.nhtsa.gov: MC 10190682 9999
• en.wikipedia.org: Injection pump

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.