this is now getting to be almost funny, can I bother you all one more time for ideas?

This is a video of the issue:
I didn't rev it in there, but it chokes around 2-2500rpms , I can't drive it at all, it just has no power to even go up the hill, backfires (my guess is through intake not exhaust) etc... As much as I wish this was idle related only, it is not, it affects the entire rpm range

the car is loud due to no muffler at the moment, but that's unrelated to the issue as the muffler has been off for months.

all new ignition parts, plugs,wires,coil,cap,rotor,new in-tank fuel pump, checked fuel pressure that seems fine, vacuum is jumping but so are RPMs, I checked for vacuum leaks everywhere even used a smoke machine which found few more little ones but nothing helped, I tried another MAF, cleaned grounds for injectors, redid wire connections on the coil... nothing helped

Could TPS do this?
Bad computer? by the way where is the computer on this car?
FPR? I think the FP was jumping 40-35psi or so, but I had a lousy gauge with a small leak, I sort of assumed that jump wouldn't matter all that much.


Only two codes were FI codes 113 and 232, I believe only 113 applies because 232 may have came on when I unplugged the MAF while the car ran.

IDK if this is a hint or not, but it tends to run for about 1 minute perfect when first started after sitting a while, then it goes into this surging idle crap.

 

Look at the Power Stage, a 3 inch metal plate looking thing with a plug with wires on the driver's side inside fender toward the front. Swap it with a known good one, see what happens.

 

does it look like an ignition module? by the air filter housing?


I will make a junkyard trip, I'm done buying new parts for this thing, car isn't worth it overall with all the issues it needs, but I'll get one of those, TPS for good measure, I'll grab a set of injectors and FPR too. After that IDK anymore... lol


keep the suggestions coming pls