Live from TMC 2026 Nashville: Who Is Truly Speaking for the Drivers?
TMC 2026 Annual Meeting recap — from enterprise diagnostic giants to driver-focused tools. Proformance was on the floor in Nashville to show there's a better way.
Diesel Truck Diagnostics Blog
Latest Articles
NOx Sensor Structural Analysis for EU/US Heavy-Duty Diesel Trucks
Deep dive into 2025 NOx sensor architecture, components, and SCR integration for Euro 7, EPA HD 2027, and CARB HD Omnibus heavy-duty diesel trucks.
2025 Diesel Aftertreatment System Guide: 9 Critical Components Every Owner-Operator Should Know
Master the 9 essential components of diesel aftertreatment systems for 2025. Learn how to diagnose issues, prevent downtime, and meet EPA emission standards.
Diesel Smoke Color Diagnosis Guide
Learn how to diagnose diesel engine problems by observing smoke color - black, white, or blue smoke indicators.
Can I Leave My OBD2 Scanner Plugged In My Diesel Truck While Driving?
Is it safe to keep a Bluetooth OBD2 scanner connected while driving your diesel truck? Learn the risks, benefits, and best practices for using ProformanceLink continuously.
How to Choose the Best Heavy-Duty Truck Scanner: 7 Features That Matter
Learn how to choose a heavy-duty truck scanner based on vehicle compatibility, fault codes, live data, DPF regeneration, updates, support, and total cost.
Heavy-Duty Diagnostic Tool Comparison: Proformance Link vs. OTR Diagnostics vs. Diesel Decoder
Compare Proformance Link, OTR Diagnostics, and Diesel Decoder for fault codes, live data, forced DPF regen, coverage, subscriptions, and total cost.
DPF Regeneration: Types, Process & Forced Regen Guide
Learn how DPF regeneration works, the difference between passive, active, parked, and forced regen, and what to check before starting a diesel truck regen.
DEF Quality Problems: Contamination, Crystallization, and SCR Faults
"How contaminated, diluted, or aged DEF causes SCR faults: the symptoms, how to test urea concentration, storage rules, and what to do when the wrong fluid was added."
Recent Articles
VIN Decoder: How to Read Your Vehicle Identification Number Like a Pro
Learn how to decode the 17-character VIN: what each digit means, how to identify model year, engine, and plant, and why decoding matters before you buy or repair.
How Often Should You Change Truck Engine Oil?
A practical guide for fleet operators and heavy-duty truck owners to optimize oil change intervals based on driving conditions and oil type.
Understanding Critical Data Points in Heavy-Duty Truck Diagnostics: What Every Driver and Shop Needs to Know
Essential diagnostic data every driver and shop needs to know for preventive maintenance and avoiding costly downtime
How to Fix SPN 84 FMI 3 — Accelerator Pedal Position Voltage High: Causes & Solutions
SPN 84 FMI 3 means accelerator pedal position voltage is above normal. Learn the symptoms, common causes, how to diagnose it with a diesel diagnostic laptop, and the fix.
Live from TMC 2026 Nashville: Who Is Truly Speaking for the Drivers?
TMC 2026 Annual Meeting recap — from enterprise diagnostic giants to driver-focused tools. Proformance was on the floor in Nashville to show there's a better way.
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