I’ll check the PVC in the morning. The seafoam did not fix. Could it be the TPS?

 

Can someone help me identify where the FPR is? I am not able to find it.

 

in the tank with the pump, you mentioned you have a new pump right?

 

test your fuel pressures. should be over 55 psi at idle. also if you have access to a smoke machine try smoking the intake to see if you have air Leakes.
do you have access to a scanner that will show you your fuel trims? they should be as close to 0 as possible.
also with the proper scanner you can also do a crankshaft position relearn. or if you have a flex fuel model you can try reset the flex fuel sensors fuel alcohol ratio.

on another note your throttelbody picture looks like the gasket might have leaked in the past. look at the discoloration and crust buildup on the right side of the pic compared to the shinny left side. maybe a new gasket is in order there.

 

Right I thought this was true. Yes, new pump and all new sensors too.

 

i picked up a TPS today 100$... hope that wasn’t a waste. I do have a scanner but it’s a BlueDriver obd2 deal. I think I can see fuel trim... but unsure if it can reset anything. I’ll see if I can get a TB gasket too... it can’t cost much? I don’t have a smoke machine... but for sure I would want to know for a fact the intake gasket was bad before I rip into that. It’s a much bigger job.

Anyone have advice for replacing the TPS? Looks like I need to drill the rivets out of the original... and the replacement comes with a new plug and screws.

 

Why the TPS?
Here's a good article for you to read:

fuel injector symptoms

 

How many miles did you drive? Seafoam injector cleaner in the tank is a slow process.
Use only top tier gas
and seafoam could correct.
Or you could replace the (8pack for $57.98)

 

Some folks said it could be the TPS... beyond that I don’t have any reason. I have no codes or bad driving conditions like Los of power... just choppy idle that goes away when I give it gas. I have already pulled the TB and replaced the TPS... I want to replace the TB gasket too. I put two 20 oz cans of sea foam in yesterday with a half tank. I drive two hours non stop till it was ready for a fill up. I added 87 gas after that and had the same results. I can try it again? I also wanted to do a deep clean where I spray the seafoam into the intake and let it smoke out the valves... that is coming once I get it back together.

Some of of these things I am ok with. Preventive maintenance but 100$ part is stretching my wallet a tad.

 

Yes, I hate to see others throwing parts at it. Return the tps and get a cheap set of fuel injectors that I posted above instead. As far as performance, you would notice driving off idle, however you may not know the potential? Btw, I watched/listened to your video on surround sound, your engine sounds like it's starving for air or fuel @idle. Btw, If you have a scanner that can clear codes, you could test air intake, by disconnecting the maf sensor, disconnect the cai from the tb, etc.. to see if that corrects, then clear the codes.