4/20/2024 0 Comments Ls ecu tuningTo decrease LTFT values, a smaller number or number closer to zero, ADD the difference between the positive LTFT value and zero to the corresponding cell in the VCM Editor>Edit>Engine>Airflow>Main VE>Primary VE vs. If the LTFT was (-4), the result would be (67)+(-4)=63, decreasing VE and thus reducing fuel. If LTFT = (4), VE cell value is 67, result would be (67)+(4)=71 - increasing the VE, which is adding fuel. The operation is opposite for negative LTFT's.* Richen this cell by increasing the VE table value by the amount of the LTFT value. Positive LTFT's indicate fuel is being added because of a lean condition. The goal is to get ALL LTFT’s between -5 and +5. Open the VCM Editor>Edit>Engine>Airflow>Main VE and select Primary VE vs. Go to VCM Scanner>Histogram display>LTFT's. Do NOT turn off the engine until the log is saved or it will be lost. Try to hit as many cells in the histogram as possible. Log about 30 minutes of driving at many different speeds and conditions. Try not to enter PE mode while driving and logging for this procedure. Changes to the LTFT’s do not take effect immediately – the PCM requires about 50 minutes or roughly 100 miles to allow for the PCM to relearn the fuel curve. Then Tools>VCM Controls>Fuel & Spark>Fuel Trim Learn>Reset Fuel Trims. The computer reverts to the low octane table when a MAF failure is indicated, this will assure optimal timing.*Ĭ. Copy the High Octane table to the Low Octane table. In the VCM Editor>Edit>Engine>Spark Advance>Main Spark vs. Don’t worry about the DTC at this time.ī. Ensure that the P0103 DTC is enabled and you are seeing P0103 in the DTC list. This will set a P0103 code and turn on the SES light. In the VCM Editor>Edit>Engine Diagnostics>General>MAF Sensor Fail Frequency = 0. Set Abuse Mode RPM, Abuse Mode TPS and Abuse Mode Speed = 0ĭ. Open the VCM Editor>Edit>Transmission>Torque ManagementĬ. Ignore this step for a standard transmission (M6) and continue to step 2.*Ī. If converting from carburetor, requires fuel system to be purchased seperately.1.ĝISABLE ALL TORQUE MANAGEMENT – This will eliminate all torque management within the PCM. The EZ-EFI 2.0® LS Self Tuning Engine Control Kit is made in the USA, features a limited lifetime warranty and is backed by the industry’s most extensive technical support team. This multi-port installation kit is compatible will all LS-based car and truck engines and is designed and engineered by FAST™. And with the included FAST™ EZ-LS™ Ignition Controller, the user can easily get running or has the option to adjust timing. It features a clean, mesh wrapping that dramatically improves engine aesthetics over the factory harness. A purpose-built, OEM-quality wiring harness is included in the kit as well. The EZ-EFI 2.0® system actually tunes itself as the user drives, and because it keeps tuning, future engine upgrades are a breeze, meaning that expensive trips to the shop for simple tune changes are a thing of the past. After initial setup, the hand-held can be used as a digital dash with the included suction cup window mount. This kit features all of the advantages of the award-winning EZ-EFI 2.0® ECU, plus it includes the EZ-LS™ Ignition Controller and uses stock or aftermarket LS injectors, sensors and coil packs.Īdvanced Color- Touchscreen Hand-Held Can Replace Tach & Most GaugesĮach FAST™ EZ-EFI 2.0® system utilizes an easy-to-use interface through the included touch screen hand-held and doesn’t require a laptop or tuning experience. The FAST™ EZ-EFI 2.0® LS Self Tuning Engine Control Kit is the easiest way to get your LS transplant up and running without the complex PCM flashing and harness reworking required with the stock unit. Easy LS-Engine Swaps No Complicated OE-Harness Re-Working or Costly PCM-TuningįAST™ engineers have developed the simplest plug-and-play, self tuning engine control system on the market for the LS series of engines.
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