Subaru Legacy 2007

"...weather (is) a problem..."? usually not; but extended racing in Park isn't a good idea!

What is moving you to race the engine at 4k rpm in park? Is this on initial cold startup and are you in a cold environment?

I was actually jump starting another car whose battery was completely dead and thats wen i realised the engine cuts off after sometimes

HA! I'll be honest, for some reason I was thinking 30-45 minutes. Okay, well, I'm no pro but it might be load related, like it's dipping into the charge sector of the alternator after that long of messing with said dead battery and trying to start their car? idk. I was thinking maybe something sensor/ A-F related and it's having to fluctuate or like open/closed loop. idk...does it run fine otherwise?

Sorry I said idk a lot. That's kind of a "hmm, thinking" thought.

yes the car works fine otherwise...even when am not jump starting any car and i hold the accelarator for like 30 to 40 seconds its got the same issue.

Hey Doc: it hurts when I do this! Have a fine Thanksgiving....