Throttle closes at WOT after tuning: the MAF overflow trap
Your tune feels fine until 5,000 RPM, then the throttle starts closing. It’s not a sensor — it’s the ECU’s hardcoded airflow overflow limit.
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Find idle maps in EDC17 and MD1 — and the 900 RPM rule
Idle isn’t one map. Where idle maps sit in EDC17, EDC16 and MD1, the 2000-to-1400 search signature in WinOLS, and why 900 RPM is the floor.
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EGR off and DPF won’t burn: the +20% post-injection rule
EGR delete is the easy part. Keeping the DPF burning is the hard part: the +20% post-injection rule, failure modes, and verifying the fix.
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TriCore architecture for ECU reverse engineers
The architecture behind the code: TriCore memory layout, the 32 registers, upper vs lower context, and why understanding it is the ceiling past map tuning.
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How to disassemble ECU firmware: from raw readout to readable code
Why a first disassembly looks like nonsense — the compressed-readout trap most guides skip — and the real sequence from raw ECU dump to readable code in Ghidra.
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EDC17 DTC tables: one fault, two codes (DTCO and DTCX)
Why a Bosch EDC17 stores every fault as two DTCs — DTCO (generic OBD) and DTCX (manufacturer). How the DTC tables map to DFC checks, with a live DPF sensor example.
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EVC WinOLS course price 2026: full breakdown
EVC WinOLS courses cost €1,606–€3,272. What each price includes, the hidden costs, and 4 alternatives compared (incl. Tuners Guild).
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Bosch EDC17 tuning guide: maps through physics
Bosch EDC17 tuning guide: every map explained through engine physics. Driver Wish, Torque Limiter, FMTC, SOI, VNT. By Thomas Pirowski.
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EVC certified training vs Tuners Guild: tool cert vs engineering career path
EVC certifies you to operate WinOLS. Tuners Guild trains you to calibrate engines. Compare pricing, curriculum, schedule, and fit.
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WinOLS training: why map identification is not enough
WinOLS training courses teach map identification. That’s 20% of calibration. Here’s what the other 80% looks like — physics, methodology, and why it matters.
