PACCAR (Kenworth & Peterbilt)
PACCAR fault code
SPN 5442 / FMI 15
PACCAR Fault Code P228F: Common Rail Fuel Pressure – Data Valid But Too Low
P228F on PACCAR (Kenworth & Peterbilt) engines means: Common Rail Fuel Pressure – Data Valid But Too Low. The failure mode (FMI 15) is “data valid but above normal range (least severe)”.
Code details
- Manufacturer
- PACCAR (Kenworth & Peterbilt)
- Applies to
- PACCAR MX-13 (2017–2020)
- Fault code
- P228F
- J1939 SPN
- 5442
- FMI
- 15 — Data valid but above normal range (least severe)
- Truck models in source
- Kenworth T680, T880, W900, T800; Peterbilt 579, 389, 567, 367
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- FMI 15 tells the shop the type of failure to test for: data valid but above normal range (least severe).
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
Owner-OperatorAdd this truck & start trial
Run your own truck?
Log maintenance, track fault codes, and get roadside breakdown dispatch.
$39.99/mo
Cancel anytime
More ways Repairius keeps vehicles running
Tools for owner-operators, shops, fleets and drivers — all in one place.
Auto & Truck Shop OS
From $99.99/mo- Work orders & job management
- Digital vehicle inspections
- Parts lookup & inventory
- Estimates, invoices & payments
Fleet Maintenance
From $129/mo- Preventive maintenance schedules
- Driver DVIRs & defect reports
- Safety & compliance clearance
- Preferred shop dispatch & approvals
My Garage
100% free- Digital glovebox for your vehicles
- Maintenance history & reminders
- Recall alerts
- Book verified local shops
Owner-Operator? Track this truck for $39.99/mo
StartFix these trucks? Get your shop listed free·Find a diesel shop
Related fault codes
- PACCAR Fault Code P228F — Common Rail Fuel Pressure Control – Incorrect
- PACCAR Fault Code P228C — Common Rail Fuel Pressure – Data Valid But Too High
- PACCAR Fault Code P228D — Common Rail Fuel Pressure – Data Valid But Too Low
- PACCAR Fault Code P228E — Common Rail Fuel Pressure – Data Valid But Too High
- PACCAR Fault Code P228C — Common Rail Fuel Pressure Control – Incorrect
- PACCAR Fault Code P228D — Common Rail Fuel Pressure Control – Incorrect
- PACCAR Fault Code P228E — Common Rail Fuel Pressure Control – Incorrect
Source: PACCAR MX-13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.