Injector Bank 2 Supply Voltage
The MAXXFORCE-P2149-DT (MaxxForce) diesel fault code means: Injector Bank 2 Supply Voltage. This is a serious severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- advanced
- Estimated cost
- $400-$2,200
Down with a MaxxForce fault on the road?
Get connected with a verified mobile diesel mechanic near you. Verified diesel & reefer techs, launching on the freight corridor.
Find a mobile mechanic →A $30 car code reader can't do diesel. The HD7000 reads full-system codes and does parked DPF regen, idle/speed-limit, and service resets from the cab — on everything from a 6.7 Cummins/Power Stroke/Duramax pickup to Class-8 trucks (Detroit, Paccar, CAT, Volvo, Mack, International).
Full-system 6/9/16-pin diesel scan tool for Cummins, Paccar, CAT, Detroit and more — plug-and-play, no subscription. A cheaper way to read heavy-duty codes a basic OBD2 scanner skips entirely.
Affiliate links — we earn a commission at no extra cost to you.
Common Symptoms
- Multi-cylinder misfire
- No start
- CEL
Probable Causes (Ranked by Likelihood)
- Shorted injector on bank 2 Likely
- ECM driver failure Possible
Frequently Asked Questions
What is P2149 on a MaxxForce DT (7.6L)?
P2149 on a MaxxForce DT (7.6L) (2007-2015) indicates: Injector Bank 2 Supply Voltage. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P2149 on my MaxxForce?
No. Stop driving and arrange for towing. Continued operation risks catastrophic damage or stranding.
How much does it cost to fix MaxxForce P2149?
Repair cost is typically $400-$2,200 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
Isolate bank 2 injectors.
Ohm bank 2 harness for short to ground.
Commonly Affected Vehicles
- International 4300 DuraStar MaxxForce DT
- International 4400 DuraStar MaxxForce DT
- International 7300/7400/7500 WorkStar MaxxForce DT
- IC Bus CE-Series MaxxForce DT
- IC Bus RE-Series MaxxForce DT
Related Codes
Explore More
Was this helpful?
Send this to whoever is fixing the truck — your tech, or the person asking what the fault means.