car sputters

[oscare003]

so 2day we took off 2 my tio's long story short on the way the car acts like its runnin outta gas.
very slow acceleration. we park it i pop the hood and my wife gives it gas and it hesitates a bit. she cuts it off the starts it and it was fine?? but check engine lights on and so we went 2 auto zone and heres what it says,



question on the thermostat. the stock plastic 1 is 1 piece with a inside part. the aluminum 1 i bought is 2 piece and its missin the inside part with a spring? is it suppose 2 have it? do i pry open the plasic 1 and thro it on the aluminum?

[daug1502]

Every thermostat I have ever seen has everything you need right there.

[petrified.rabbit]

the part with the spring IS the thermostat.. your driving without one. replace that first with a new one, like $10..

if the temp reading was affecting gas feed, the could have tricked the o2. but but it sounds like the o2 might be needing replaced as well.

[oscare003]

no i have not installed the aluminum thermo yet since it didnt have the spring part inside. the stock 1 is still on. as far as the sensor ill try 2 look 4 a replacement 2morrow.


so im still missin the springy thing

[Daox]

My guess would be that the problem is not the thermostat. I'd imagine the O2 sensor has gone bad. Sensor 1 bank 1 means its the sensor right in the exhaust manifold, not the one behind the CAT.

BTW, this is a thermostat. The aluminum/plastic piece is just the housing for the thermostat.

[petrified.rabbit]

I thought he was running without a thermostat and that was leaving the car running in warm up mode even even though the temp "was" correct to the o2. The excessive gas would make the o2 try to adjust fuel outside it's perimeter and throw a code. But since the t-stat hasn't been changed yet (not missing) then it is the o2.

[oscare003]

^ thanx fellas i will order the sensor. sorry rabbit i wasnt clear. yea i havnt done anything yet because i was like im missin sumthin here. now the sensor u speak of. when the hoods up is the sensor on the header?

[petrified.rabbit]

Yes. You'll need an u2 socket as well.

[oscare003]

u2 socket? u mean o2? or this in the picture?
http://i284.photobucket.com/albums/ll22 ... Socket.jpg

[Daox]

Yup, thats the one. You can get at it with an adjustable wrench, but its a real pain.