Injector Group B Supply Voltage
What does MAXXFORCE-P2149-11 mean?
The MAXXFORCE-P2149-11 (MaxxForce) diesel fault code means: Injector Group B Supply Voltage. This is a serious severity code.
Common Symptoms
- Rough running on bank B cylinders
- Derate
Probable Causes (Ranked by Likelihood)
- Shorted injector in group B Likely
- Chafed injector harness under valve cover Possible
Step-by-Step Diagnostic Procedure
Disconnect group B injectors one at a time.
Replace harness or failed injector.
Frequently Asked Questions
What is P2149 on a MaxxForce 11 (10.5L)?
P2149 on a MaxxForce 11 (10.5L) (2008-2014) indicates: Injector Group B 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 $500-$2,500 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.