MakoHiko

Hi, first post here.
Im looking for some help on why my car is doing this.
It recently has started accelerating extremely slow, like it's powered by a lawnmower engine(in video below i am full throttle, whether i am or not doesnt seem to make a difference in how fast i accelerate very much) and generally idling around 500rpm very poorly (lots of vibration, and in park the idle sometimes bounces to 600 and then back down voer and over again). It's also got a cel which threw me codes
p0351,p0353,p0355.(there was also a p0205 code, but that went away last time I had car scanned) I have replaced both coil packs and spark plugs, no difference made. I also tried resetting ecu by disconnecting battery for 15min to see if the problem would go away, but the moment I turned on my car it started idling and driving poorly again. I know it's not MAF because when I disconnected it, car immediately died.
What could even cause this, I can't find anything online about this and am at my wits end

Any help is appreciated

MikeFig82

iTrader: (13)

Vacuum leak? Have you checked fuel trims, live Data?

Check all the Vacuum lines leading into the intake manifold.

MakoHiko

yeah, turns out it was a screwed up ecm not sending stuff properly, i was wondering if i could just yank out my jdm ecm and just replace it with a usdm spec one