Meche yota

Hi guys, I'm new here. I have a 1991 yota reg can 5 speed base model. My problem Is whe I crank it and take off down the road after about a mile or two it will lose power until it warms up. It's like sputters won't go unless I let off the gas. When it warms up it runs great not a glitch. Only does it when it's cold. I have replaced plugs,wires,rotor,cap,coil,pickup coil, tested fuel pressure it's at 35 psi. I have sprayed all vaccum lines with carb cleaner and didn't change anything. I'm now leaning towards o2 sensor and coolant temp sensors. Any help would be great appreciated!

Meche yota

Anybody?

westjohns yota

possibly a clogged cat? check your fuel pressure regulator hot and cold? fuel pump could be loseing power before it warms up, just a list of things, you said fuel pressure at 35 so i assume its a 22re? fuel injected

waskillywabbit

iTrader: (-1)

CSI perhaps

:wabbit2:

Meche yota

Yes it's a 22re. This morning I sat under the porch and let my truck warm up. No problem after warm up. I'm in Louisiana so the cold weather is really not a factor here.

Meche yota

Incan now gear it backfiring though the intake maybe. I need some help guys.

Meche yota

I pulled the o2 sensor off and Tryd to read the voltage with my meterand a propane torch.. It's doesn't read any voltage. Does it mean thati need a new one?

Meche yota

Ok guy I got it fixed. I changed the o2 sensor, coolant temp sensor and thermostat. Runs like a dream. Tks for the help.