Update:
So I have a P0300 code still and I’ve been pulling my hair out, as I sit, my hands are raw and sliced up here and there… I JUST got back inside from a 40 minute test drive and have the same symptoms as before, I just spent 3.5 hours to take the manifold off, replaced the spider injectors and intake gasket and I’m still getting a choppy idle and P0300 with a P0155 that disappeared after the initial scan…
I torqued the manifold down to 44 inch pounds in sequence on the first go then 88 inch pounds on the final torque sequence…
I’ve changed the EGR, plugs, wires, distributor, MAF, air filter K&N, crank shaft sensor, fuel filter and now spider injectors and intake gasket…
I really seriously could use a fresh look, advice, anything…
I live in Southern California I’m not sure if you know of anyone here that you trust to help me diagnose this but I’m desperate now I’m over $1,600 and I’ve had it…
Everyone is saying it’s the tps, it’s the ignition control module, it’s the cats delete the cats, delete the egr, go straight piped but I can’t mess with any of that in Comifornia…
It ran WAY better on the drive but at idle it’s super choppy and it does sound muffled but idk if it’s just the sound of the exhaust or what or how to check for a bad cat, no sulfur smell, no rattling… I’m out of ideas…
Note: After the 40 minute drive, WOT a couple times on the freeway where it ran better than before after coming to a stop it was still choppy and rough idling then while waiting in the drive thru it just shut off, tried to start it and it acted like it was it out of gas, pushed it, waited 10 minutes, cranked it and it started right up, drove a mile, shut it off then tried to restart it and it acted out of gas again, shut everything down, started googling again… HEELP!