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Dave Reyes
Diagnostic Engineer · iCarsoft · Emissions & diesel after-treatment
Dave is a diagnostic engineer on the iCarsoft team focused on emissions and diesel after-treatment — diesel particulate filters and regeneration, SCR and DEF (AdBlue) dosing, EGR flow, and the glow-plug and readiness issues that come with them.
What I cover
- Diesel particulate filter (DPF) and regeneration.
- SCR / DEF (AdBlue) dosing systems.
- EGR and exhaust-gas flow.
- Glow plugs and emissions readiness monitors.
How I write these guides
Diesel after-treatment codes get misread constantly — a regen that never finished gets blamed on a dead DPF. So I write each guide to separate the sensor reading from the real fault, checked against the SAE J2012 definition and public OBD references and updated as new emissions data lands.
On DPF and SCR work the wrong call is a four-figure part you didn't need — these guides lean on the live data an iCarsoft tool gives you so parts get replaced on evidence. Browse the full library on the OBD-II Codes blog.
