HP Tuners GM Gen 4 Training Part 25: Spark Timing
HP Tuners GM Gen IV Master Training Course
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25m
Follow along with lead instructor, Jeff Evans, as he walks you through the main spark timing tables used in a GM Gen 4 ECM. We explore logging spark timing within the VCM scanner in order to expose if the high octane or low octane spark timing table is being sourced during operation.
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HP Tuners GM Gen 4 Training Part 26: ...
Follow along with lead instructor, Jeff Evans, as he walks you through the spark timing modifiers such as PE/COT, IAT, ECT, EGR, and many others. We take an in-depth look at exposing the spark timing modifiers in our VCM scanner software to understand where the spark timing is coming from while ...
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HP Tuners GM Gen 4 Training Part 27: ...
Follow along with lead instructor, Jeff Evans, as he walks you through the idle control tables and routine used in a GM Gen 4 ECM.
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HP Tuners GM Gen 4 Training Part 28: ...
Follow along with lead instructor, Jeff Evans, as he walks you through what tables need to be modified and values that need to be changed in the calibration file for proper idle control over a variety of different cam profiles. We also explore configuring various logging channels within the VCM ...
