Zero-wiring 2step rev limiter with factory PCM in HPTuners/TunerPro - Beretta
Автор: GEARHEAD dezign
Загружено: 2024-06-06
Просмотров: 1570
Описание:
I figured out a way to set up a 2-step rev limiter, controlled by the stock PCM with no wiring needed. It reacts super quick and it should work great for drag racing.
I originally tried wiring in a clutch switch to pin 32 of the PCM to trigger the P/N tables, but that didn't work at all. So I changed my strategy and repurposed the "closed throttle base spark" table. That's actually a better solution for a few reasons:
1 - Spark advance changes recover faster that fuel injector cut...
2 - It reacts quicker in the pedal swing without needing to trip a switch at the rest position. The clutch is already fully engaged when the pedal closes the CPP switch. But the wheel speed hits 1mph as soon as the clutch starts to engage
3 - No wiring...at all. Adding the Clutch Pedal Position switch requires running a wire to pin 32 to the P01 harness and grounding the other.
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