| Tip |
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As of 10/22/2025 the below settings and table values can be automatically applied to your tune via our Base Map Generator Tool found here. |
| Note |
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Guessing or using incorrect injector characterization data will result in poor performance and potentially engine damaging situations! |
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Once all Port Injection tables are populated you can enable our custom code by setting Enable Nexsys Motorsport PI Conversion to 1.
| Warning |
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Differential Fuel Pressure Compensation table should be filled with 100% if using a 1:1 boost referenced fuel pressure regulator. |
| Warning |
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MHD’s PI Safety MUST be disabled in flash-time options before flashing the vehicle. Failure to do so will result in pops/bangs on throttle lift that can cause engine, turbo and exhaust damage. |
Other table recommendations
Latest EOI Angle - Set to 0*. This will allow you to use the entire injection window.
Minimum LPFP Pressure - Set to 10-15 psi below your base fuel pressure. This will keep limp mode from occurring at lower fuel pressures.
Enable LTFT - Set to 0 during the fuel tuning process. This will disable long term fuel trims temporarily while fueling is tuned. On single bank vehicles it may be beneficial to have long term fuel trims always disabled.