Fuel Injection Pump Calibration Data Incompatible
The P2374 code means the vehicle's onboard diagnostic system has detected: Fuel Injection Pump Calibration Data Incompatible. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $300 - $1,500 (parts and labor)
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What Are the Symptoms of P2374?
- Check Engine Light on
- Engine hard starting or no start condition
- Rough idle and engine knocking
- Excessive smoke from exhaust
- Significant power loss
What Causes P2374? (Most Likely First)
- Mismatched or incorrect injection pump calibration data Very High
- PCM software corruption after update High
- Replacement pump not properly programmed Moderate
- Communication error between PCM and pump controller Low
Can I Still Drive with P2374?
Short distances only. P2374 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P2374 mean?
P2374 relates to the fuel injection pump system: Fuel Injection Pump Calibration Data Incompatible. This code is most commonly seen on diesel vehicles where precise pump timing is critical.
Can I drive with P2374?
Drive only short distances to a shop. Fuel injection pump issues can cause hard starting, poor performance, and potential engine damage from incorrect timing.
How much does it cost to fix P2374?
Costs range from $300 for sensor or wiring repairs to $1,500+ if the injection pump itself needs replacement or rebuilding.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2374?
-
Retrieve P2374 and check for related fuel system codes
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Monitor injection pump timing and speed data with a scan tool
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Inspect injection pump sensor wiring and connectors for damage
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Verify injection pump timing alignment marks are correct
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Which Vehicles Commonly Get P2374?
- 2007-2015 Nissan Altima 2.5L I4
- 2009-2017 Chevrolet Silverado 1500 6.2L V8
- 2014-2022 Honda Accord 1.5L Turbo I4
- 2008-2016 Volkswagen Jetta 1.4L Turbo I4
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