car sputters

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,
http://i773.photobucket.com/albums/y...o/IMAG0011.jpg
http://i773.photobucket.com/albums/y...o/IMAG0010.jpg

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?

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

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.

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.
http://i773.photobucket.com/albums/y...o/IMAG0015.jpg
http://i773.photobucket.com/albums/y...o/IMAG0013.jpg
so im still missin the springy thing :(

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.

http://www.auto-repair-help.com/imag...thermostat.jpg

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.

^ thanx fellas i will order the sensor. sorry rabbit i wasnt clear. #-o 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?

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

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

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

ok but umm guess how much that sensor is at vatozone :shock: :shock: $140.99 um ill keep lookin

Just don't get suckered into the "universal fit" bosch ones. The splicing never works well.

this is whats on ebay. are these the universal ur speakin of?^^^^

http://shop.ebay.com/i.html?_nkw=aveo+0 ... m270.l1313

I've always used universal sensors and have never had a problem. Universal O2 sensors just means you have to reuse the connector on your original sensor. This requires cutting the wires and soldering/crimping the connector to the new sensor.

doesnt sound that bad i've done that b4 with the fuel pump. so which 1 would yall recommend? :?:

I've used the universal o2 sensor from autozone on my '04 aveo's upstream sensor. It's not hard at all. 30 minutes if you've ever crimped wires before, and can follow directions.

To install:

1. Disconnect the wiring harness for the o2 sensor.
2. Remove the exhaust manifold heat shield (a couple bolts towards the top of the shield).
3. Remove the o2 sensor from the exhaust manifold
4. Cut the wire from the o2 sensor to the connector. Cut it close to the sensor itself, that way you have a TON of wire to work with, you can always use zip ties later to shorten it... but if you cut it short and make a mistake, you may end up running out of wire! Save the sheath around the wires and reuse it.
5. Follow the instructions and use the included harness to connect the OEM connector to the new o2 sensor.
6. Reinstall the new o2 sensor, manifold heat shield, and plug in.
7. Run the car until it's warmed up a couple times and your code should clear, or just take it to autozone and have them clear it.

Quote:

---

Originally Posted by oscare003

doesnt sound that bad i've done that b4 with the fuel pump. so which 1 would yall recommend? :?:

---

well my wifes says it happened yesturday. AGAIN. :x i think its happened a total of 5 times with her 2 with me. i will most likely invest in the sensor. what do u fellas think?

should probably do it.

another note is that she says the gauge inside is and has been readin lately. check egine lights been on still. but yes as soon as i get a chance ill order 1. i gots alota stuff on my mind. workin on gettin a house.

CAN SOME ONE SHO ME WHICH 1 2 BUY.??
paste it here b4 i make the mistake of ordering the wrong SH%#
KTHXBYE lol

I'd just go to the local autozone or whatever and buy a universal sensor for the Aveo.

^will do ill check it out 2morrow :mrgreen:

go to your local jobber and get a direct fit O2. Put a AC Delco in it. Yes you can use a universal but it the car is not worth the extra money for the right one then why bother with any?

your talking a $150-250 difference in price just for the factory to put the wire ends on for you for the most part.

the quality of the sensor itself is about the same, and sometimes its the same sensor you would pay a lot more for.

hey vato zone says the only 1 that works there is the exact same replacement?? this true?? or the 1 on ebay my best bet?

so it shut off 2day again at the bank. :( im gonna take it 2 get diagnosed. i dont think its the o2 sensor. im thinking idle control valve. but i wont kno till i can take it 2 the shop. been way 2 busy FTL.

ok so i finally threw on the aluminum thermo. at the same time i washed her. i took the ave 2 the mechanic w/ a snap on tools dyalasis thing. $35.00

told me its the Map sensor $60, thermo $5, and the 02 sensor $100.

so i ordered the map and added the thermo.

he erased the check engine light and once the map comes ill add on. went 2 advance auto 2 order the map, and i asked also for the 02 sensor. he says we have universal ones, and i said wait i thought it wouldnt fit on the aveo??

he says he doesnt recommend. i never listen lol but i think ill try the ebay 1 after i add the map sensor.

odds are its only the o2.. they rarely would go all at the same time.

talking about the o2 sensor---I have headers on my Aveo and my light will not go off "engine light" have any one come up with a way to fix tat problem??

did you eliminate the cat?

yes I did. I just took off the o2 dipped it in some fuel injection cleaner and removed the neg wire.

Well there's why you have a check engine light. You killed the o2 and cut it's signal.

It needs to be there and functional for no light.

I cleaned the o2 installed an extension now light is off. for how long???

^ill be doing the same pretty soon. map sensor is comin in monday

ok fellas long time no see since i still dont have the internet but heres an update of whats been going on.

the aluminum thermostat had a leak so i hade 2 add some silicone from the auto store, its for valve covers and its heat resitant. works great!! its a blue silicone btw if u wanna kno. leaks are gone.

there was alot of oil in the engine bay so i cleaned it and found out it was coming from the top 2 bolts under the plastic cover one the engine. i also added the silicone. so far so good. the 02 sensor i still have not replaced but i did clean it enough to the point that the check engine light turns off.

the car had stop shuttin off for about 2 months and it started till i fixed these issues. so far its good. still has the 18s on. i went back 2 the stock air filter tho. thats about it. been very busy with the new house i just got.

hope this helps someone in the future~