On 70% of cold starts, the battery icon will be illuminated on the dash. With the warning light still on, the voltage reads about 11.9v with the engine running. After revving to about 3k rpm, the voltage regulator suddenly decides to start working and produces the acceptable voltage range in accordance to the fsm (13.3-14.6v). The battery warning light switches off and never comes back on after revving once at start up. If the engine is warm, and restarted the light does not come back on. Only at cold starts I will have to tap the accelerator to "kickstart" the alternator.
I probably need a new voltage regulator, but why does tapping the gas solve this issue? Anyone have a suspicion whats going on internally either around the brushes or internal voltage regulator in the alternator?