# \#calibration
**URL:** https://community.tunersguild.com/tag/calibration/24.md
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## [MD1 Stage 1 diesel — what's the full map list in priority order?](https://community.tunersguild.com/t/md1-stage-1-diesel-whats-the-full-map-list-in-priority-order/192)
**Author:** [@stanislav](https://community.tunersguild.com/u/stanislav)\
**Replies:** 0\
**Last updated:** [June 10, 2026, 6:04pm UTC](https://community.tunersguild.com/t/md1-stage-1-diesel-whats-the-full-map-list-in-priority-order/192 "2026-06-10T18:04:25Z")
If you ask which Stage 1 diesel map matters most on an MD1 ECU, the question is set up wrong. The maps work as a data flow — driver wish feeds torque limits, torque feeds conversion, conversion feeds rail pressure, and s…
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## [DENSO LFJ1EF – minimum ignition limiter (~ -13°) (Mazda MX-5 NC)](https://community.tunersguild.com/t/denso-lfj1ef-minimum-ignition-limiter-13-mazda-mx-5-nc/97)
**Author:** [@lano](https://community.tunersguild.com/u/lano)\
**Replies:** 1\
**Last updated:** [May 8, 2026, 11:59am UTC](https://community.tunersguild.com/t/denso-lfj1ef-minimum-ignition-limiter-13-mazda-mx-5-nc/97 "2026-05-08T11:59:06Z")
Hi, I’m working on a DENSO LFJ1EF file from a Mazda MX-5 NC (gen 3) and I’m trying to identify what is enforcing a minimum ignition angle of around -13°. No matter the conditions, ignition timing doesn’t seem to go bel…
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## [Understanding Conversion Factors — How Raw Hex Becomes Real Units](https://community.tunersguild.com/t/understanding-conversion-factors-how-raw-hex-becomes-real-units/70)
**Author:** [@ThomasPirowski](https://community.tunersguild.com/u/ThomasPirowski)\
**Replies:** 0\
**Last updated:** [March 20, 2026, 11:50am UTC](https://community.tunersguild.com/t/understanding-conversion-factors-how-raw-hex-becomes-real-units/70 "2026-03-20T11:50:00Z")
You open WinOLS. You find what looks like a torque limit map. The values read: 127, 189, 204, 231. No units shown. Are those Newton-meters? Percentages? Internal counts? This is one of the most concrete skills in ECU ca…
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## [Solid File vs Hollow File — How to Evaluate a Purchased Calibration](https://community.tunersguild.com/t/solid-file-vs-hollow-file-how-to-evaluate-a-purchased-calibration/59)
**Author:** [@ThomasPirowski](https://community.tunersguild.com/u/ThomasPirowski)\
**Replies:** 0\
**Last updated:** [March 9, 2026, 10:25am UTC](https://community.tunersguild.com/t/solid-file-vs-hollow-file-how-to-evaluate-a-purchased-calibration/59 "2026-03-09T10:25:00Z")
Not all purchased calibration files are equal. Some are solid — real engineering work on the right maps, consistent across the ECU’s torque model. Others are hollow — a few numbers changed to make the dyno graph look dif…
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## [7 Most Common Diesel ECU Calibration Mistakes (And How to Avoid Them)](https://community.tunersguild.com/t/7-most-common-diesel-ecu-calibration-mistakes-and-how-to-avoid-them/49)
**Author:** [@ThomasPirowski](https://community.tunersguild.com/u/ThomasPirowski)\
**Replies:** 0\
**Last updated:** [February 26, 2026, 10:25am UTC](https://community.tunersguild.com/t/7-most-common-diesel-ecu-calibration-mistakes-and-how-to-avoid-them/49 "2026-02-26T10:25:00Z")
Changing too many maps at once — One change, documented, tested, evaluated. Then the next. Not logging — “It felt better” is not calibration data. Confusing map finding with map understanding Ignoring the smoke limiter F…
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## [What's the difference between a tuner and a calibrator?](https://community.tunersguild.com/t/whats-the-difference-between-a-tuner-and-a-calibrator/44)
**Author:** [@ThomasPirowski](https://community.tunersguild.com/u/ThomasPirowski)\
**Replies:** 0\
**Last updated:** [February 20, 2026, 9:20am UTC](https://community.tunersguild.com/t/whats-the-difference-between-a-tuner-and-a-calibrator/44 "2026-02-20T09:20:00Z")
A tuner takes an existing calibration — usually a purchased file — and applies it to a car. The ceiling is real: you’re dependent on someone else’s calibration. A calibrator builds calibration. They can look at a file t…