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.
Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.
- 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?
Service ADVISOR EGR sweep test -- confirm actual vs. desired vane/valve position.
Pressure-test EGR cooler for coolant leak if coolant loss is unexplained.
Inspect intake for excessive carbon build-up; scrape if >3/8 inch.
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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