ECU & emissions
ECU Tuning & Diagnostics in Wiri, Auckland
Dealer-grade tools to read, tune and clear the systems that trip a check-engine light or fail an emissions check — from AdBlue/SCR faults to a blocked DPF.
What's included
Quoted after diagnostic scan
- ECU performance tuning & remapping
- AdBlue solution & SCR catalyst diagnostics
- DPF cleaning, forced regeneration & repair
- Emission fault & check-engine light repairs
- NOx and lambda sensor diagnosis
Modern diesel and petrol vehicles run increasingly complex emissions systems — AdBlue/SCR, diesel particulate filters (DPF), and lambda/NOx sensors all feed back to the ECU, and a fault in any one of them can trigger a check-engine light or fail an emissions check.
We start every ECU or emissions job with a full diagnostic scan to read the actual fault codes rather than guessing, then work through AdBlue system diagnostics, DPF cleaning or forced regeneration, and sensor repairs as needed. For performance tuning, we work from your car's factory mapping to optimise power and efficiency within safe limits.
This is complex, liability-sensitive work — we'll always explain what's wrong, what the fix involves, and what it costs before starting, and we won't tune past what's safe for your engine and drivetrain.
Common questions
Straight answers,
no fine print.
What does an AdBlue/SCR diagnostic check?
We check the AdBlue system's fluid quality and levels, the SCR catalyst's function, and read any related fault codes to identify why the system is flagging an issue.
Can a blocked DPF be cleaned instead of replaced?
In many cases yes — forced regeneration or a professional clean can restore a blocked DPF without the cost of full replacement, depending on how clogged it is.
Is ECU tuning safe for my engine?
We tune within limits that are safe for your engine and drivetrain, and we're upfront if a particular request isn't something we'd recommend for your specific car.
Will emissions work help my car pass a WOF or emissions check?
Yes — resolving AdBlue, DPF or sensor faults is often exactly what's needed to clear an emissions-related WOF failure.
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