Technical Service Bulletin E279 — 2017 PETERBILT 386
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Bulletin Details
| TSB ID | E279 |
| Manufacturer | |
| Vehicle | 2017 PETERBILT 386 |
| Component | ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL |
| Communication Date |
Bulletin Summary
An engine software defect exists in certain vehicles equipped with EMY17 MX-13 and MX-11 engines that pertains to timer action and count calibrations for a time-based diagnostic. This diagnostic action checks fuel pressure and has no negative impact on tailpipe emissions. This soft ware may incorrectly set DTC â P1092.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.