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Re: 2005 aveo (02 sensor replacement)
Dont waste your time getting o2 sensors from ebay.
the best thiong to do is get the original equipment for the cheapest price you can find at autozone or advance auto or o reillys or someplace local to you.
see if you think you can find it on the exaust system and take it out yourself.
it is a very easy do it yourselfer if you have the right size wrench and the right part.
just unplug it first then loosen it.
dont plug the new one in untill you have turned the new one all the way in nice and snuggly.
then plug in.have autozone reset the codes for you for free also.you can do this i know you can.
keep me posted
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When "check engine" litgh tun on, the PCM (computer) is warning that some fault code is stored there. Autozone could scanned your PCM and show exactly what fault codes is there; if your O2 sensors was replaced, I assuming that they can see this codes... so, they reset and delete all codes stored there? Scanned the PCM after this change?
assueming it has the v-6 in it look at the exhaust pipe comming off the side of the engine there will be two up stream 02 sensors which are heated and one downstream past cataliticconveter. If may have the second style with the Y cross over with 1 upstream before the cat and one after. The difference between the 0-2 sensors is the upstrean are heated so it goes into closed loop faster. I find that on most of these the up stream 02 sensor heaters have failed. You can go to a Autozone and they can pull the codes for you and tell you which side it is that needs to be replaced. However 02 sensors get old after time and they start shifting slowly, if it shifts slowly then it's called a lazy 02 sensor. And will send a code to the computer, if you get the trouble code of the 02 sensor heater is bad you will have to change it, I recommendReplacing both. The reason is if one is going bad the other will soon follow. You can buy a socket wrench For the 02 sensors for 12 dollars makes it real easy to replace the 02 sensors when they are COLD. Hope this helps and thanks for using fix-ya.
check the fuel pump and related electrical system and fuses. The aveo doesn't have a fuel filter but only a screen at the bottom of the pump. I had to replace the fuel pump in my 2004 aveo at 80k due to a clogged screen. Hope this helps
Suggest look under the hood for any wires or connectors you might have bumped loose while repairing the MAP sensor.
Check to see that you are getting a spark to the plugs.
Use care because you are dealing with high voltage and could get zapped.
If still same problem suggest obtain a good Volt/Ohm meter and trace-out your circuits to find the problem.
Shop manual with wiring diagrams is a must have for this.
Sometimes they are available online for free as a PDF file.
Be safe when working with electrical parts.
I also own a 05 Aveo, same problem without the new stereo, could be your brake light switch I just replaced it and now get out of park no problem ($18.00) Autozone. 2nd problem could be your Brake Transaxle Shifter Interlock Solenoid. Save money ask Dealer for printout on how to install, I did. I hope this info helps out. P.S. try replacing brake switch first.
I also had the same problem, But the problem lies in the switch the actual hold switch on my aveo there is a side entry way you can pop off the one on the left will give you access to the switch. what could of happen is theres is condensation in inside the switch. then when it gets cold it freezes causing the switch to malfunction. This could happen either by spilling something on the switch or using a cleaning solvent like armorall, YOU MUST BE CAREFULL WITH ANYTHING LIQUID NEAR THE HOLD SWITCH. Also the car going from warm when you drive then cold when you park it at night. My car was in warranty and remind you I came up with is the dealership had no idea what was wrong. they reseted the computer it worked for a week then was happening again. I have knoweldge in switches/wiring so i decided to check pot the switch and open it up and sure enough there was condensation took it to dealer told them to try a new switch works perfect and going on 5 months with out problems. Replacing the switch can solve pretty much every problem that is stated here i think. Also take a look at the wiring and connections for older aveos