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  1. Volt II Engine RPM vs. Mass Airflow Chart (and HP estimate)

    Propulsion Systems - Chevy Volt
    Gen II Volts don't tell us much about what is happening in our 1.5L L3A engines when they start to produce KW to power the drive system. I was curious so I connected a monitor to the OBD port and generated a file that included the engine speed and the mass airflow over a period of about ten...
  2. Is it even possible?:confused: Is it possible to control the engine rpm ?

    Problems, Driver Warnings or DTCs - Chevy Volt
    Hello everyone and thank you for all the good information over the years, I need to diagnose a vibration that only occurs at a mid range ICE RPM. I can not mimic the right RPM just using the gas pedal in park with the hood open. Is it possible for the dealer or even better my self to somehow...
  3. Full Battery, Engine on, causes engine to rev during regen?

    Li-Ion Battery, Charging, Mgmt System - Chevy Volt
    Its below 25 degrees, my battery was fully charged. Started car, engine came on right away, drove down the street, downhill all the way and had it in "L". As I let off the accelerator, the engine started reving way up even though it had only been on a few seconds. Does regen feed back to the...
  4. ICE, does it just use several preset RPM and not vary to match need?

    Chevy Volt Engineering and Design
    Hi, Took a couple hundred mile trip today, Interstate and city streets and rural highway. On my 2013 I have a display that show kW and if it is coming from the battery, regen to the battery or from the engine/generator. Several times the display indicated power coming from the...