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!

 

Anybody?

 

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

 

CSI perhaps

:wabbit2:

 

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.

 

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

 

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?

 

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