What Does P2672 Mean?
The injection pump timing is outside the acceptable range compared to the learned or expected values. This affects fuel delivery timing on diesel engines and can cause poor performance, rough running, and increased emissions. The timing offset indicates mechanical wear, adjustment issues, or sensor problems.
Common Causes
35%
Worn injection pump drive mechanism or stretched timing belt/chain
25%
Faulty camshaft or crankshaft position sensor providing incorrect timing reference
20%
Incorrect injection pump installation or timing adjustment
15%
Worn injection pump internal components causing timing deviation
5%
ECM timing calibration data corruption
Diagnostic Steps
1
Step 1: Verify camshaft and crankshaft position sensor signals are clean and correlating properly using scan tool live data
2
Step 2: Physically verify injection pump timing using timing marks or dial indicator according to manufacturer specifications
3
Step 3: Inspect timing belt/chain for proper tension, wear, or tooth damage that could cause timing deviation
4
Step 4: Check injection pump drive coupling or gear for wear, slop, or damage
5
Step 5: Perform injection pump timing relearn procedure per manufacturer specifications if mechanical inspection passes
Estimated Repair Cost
$300 - $2,500
Parts + labor, varies by vehicle and location
The injection pump timing is outside the acceptable range compared to the learned or expected values. This affects fuel delivery timing on diesel engines and can cause poor performance, rough running, and increased emissions. The timing offset indicates mechanical wear, adjustment issues, or sensor ...
The most common cause of P2672 (Injection Pump Timing Offset) is: Worn injection pump drive mechanism or stretched timing belt/chain
Typical repair costs for P2672 range from $300 to $2,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may experience reduced power, hard starting, excessive smoke, and poor fuel economy. Generally safe to drive short distances but should be repaired promptly to prevent engine damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2672 to identify the root cause.
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Quick Info
Category
Powertrain
System
Diesel Fuel Injection System
Difficulty
Type
Generic (SAE)
Recommended Tools
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