JD-SPN2791-FMI0 critical John Deere PowerTech ›

EGR Valve Position - Data Valid but Above Normal Operational Range (Most Severe)

The JD-SPN2791-FMI0 (John Deere PowerTech) diesel fault code means: EGR Valve Position - Data Valid but Above Normal Operational Range (Most Severe). This is a critical severity code.

My Garage →
Keep driving?
No — stop driving
DIY difficulty
intermediate
Estimated cost
$180-$650 EGR valve or cooler cleaning, $900-$2,400 cooler R&R -- add dealer diagnostic time ($180-$240/hr in 2026)

What Are the Symptoms of JD-SPN2791-FMI0?

  • Lack of throttle response
  • Black smoke under load
  • EGR-related derate on aftertreatment models

What Causes JD-SPN2791-FMI0? (Most Likely First)

  • Carbon packed on EGR valve seat Very Likely
  • EGR cooler internal leak (coolant in intake) Possible
  • EGR position sensor out of calibration Likely
  • EGR actuator stepper motor failure Possible

Can I Still Drive with JD-SPN2791-FMI0?

No — stop driving. JD-SPN2791-FMI0 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.

Frequently Asked Questions

What is John Deere fault code SPN 2791 FMI 0?

On John Deere PowerTech engines, SPN 2791 FMI 0 means: EGR Valve Position - Data Valid but Above Normal Operational Range (Most Severe). Critical code -- stop operating until repaired.

Can I keep using my John Deere tractor with SPN 2791 FMI 0?

Critical fault -- do not operate; tow or trailer to a dealer. Diagnose with John Deere Service ADVISOR via an EDL v3 / CF3 interface.

How much does it cost to fix John Deere SPN 2791 FMI 0?

Repair cost range: $180-$650 EGR valve or cooler cleaning, $900-$2,400 cooler R&R -- add dealer diagnostic time ($180-$240/hr in 2026). Dealer labor on large tractors runs $180-$240/hr in 2026.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose JD-SPN2791-FMI0?

  1. Service ADVISOR EGR sweep test -- confirm actual vs. desired vane/valve position.

  2. Pressure-test EGR cooler for coolant leak if coolant loss is unexplained.

  3. Inspect intake for excessive carbon build-up; scrape if >3/8 inch.

  4. Check for exhaust back-pressure out of spec causing EGR hang-up.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)

Which Vehicles Commonly Get JD-SPN2791-FMI0?

  • 2015+ John Deere 7R Series (7210R, 7250R, 7290R, 7310R)
  • 2015+ John Deere 8R / 8RT Series (8245R-8370R)
  • 2015+ John Deere 9R / 9RT / 9RX Series (9370R-9620R)
  • John Deere S670 / S680 / S690 combines
  • John Deere S770 / S780 / S790 combines
  • John Deere 544 / 624 / 724 wheel loaders
  • John Deere R4045 / R4060 self-propelled sprayers

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