Any oldschool obd1 mechanics here i need help with a diagnosis

[Tamago]

not sure if it's been said yet, but try replacing the PCV valve.. it's a 2jz.. so there's plenty of opportunity for vacuum leaks

spray starting fluid around the engine bay on vacuum hoses and if you get a sputter, you've found a leaking point.

[YarisSedan]

Originally Posted by Tamago

not sure if it's been said yet, but try replacing the PCV valve.. it's a 2jz.. so there's plenty of opportunity for vacuum leaks

spray starting fluid around the engine bay on vacuum hoses and if you get a sputter, you've found a leaking point.

Belive me i checked all that. I sprayed carb cleaner at base of intake manifold checked all vacuum lines removed the pcv valve and checked operation and then cleaned it with carb cleaner.


I think what im going to do tonight is remove the throttle body and clean it out and remove the idle air control valve. I am assuming its completely gummed up.


I did the seafoam to try to help him out. He was getting poor gas milage. I have done atleast 50 seafoam treatments with no problems. But i guess this particular car decided to act up. From now i i dont think i will do seafoam on any car that has more than 100k miles unless its been regularly serviced and maintained for fear of causing a problem. I guess live and learn.