Ok so my 1jz is having start up issues aswell as idle and stalls. I have changed the whole tb with a known untouched tps. Cleaned out the iacv the car just stalls. Doesnt want to stay on. Stumbles at cold start but after about 10 sec clears out. I have to hold the gas pedal for it to stay on or else just idles at 400 then stalls. What should i look for? Iacv is stuck closed. I have tried different iacvs and ecu's still has the same problem.
Mods: walbro 255
440s injectors
Swapped single turbo
Tuned on a neo
New plugs
Uncracked coils
Mods: walbro 255
440s injectors
Swapped single turbo
Tuned on a neo
New plugs
Uncracked coils