2009 Aveo Bucking/Jerking/Losing Power

[Fran]

Check Throttle Body Sensor.

[CKTofu]

Anyone happen to have the wiring diagram for the oxygen sensors on an 09 Aveo? I swapped out the sensor itself and it didn't solve the problem, so maybe there's a malfunctioning relay, but I'm not sure which one it would be on. I already tried replacing the related fuse, assuming there's only the one.

[2010AveoLT]

Anyone happen to have the wiring diagram for the oxygen sensors on an 09 Aveo? I swapped out the sensor itself and it didn't solve the problem, so maybe there's a malfunctioning relay, but I'm not sure which one it would be on. I already tried replacing the related fuse, assuming there's only the one.

check your PM box, I sent you what you need.

[jaxxbee]

Good Day, may you please send me the 2009/2010 downstream oxygen sensor wiring diagram please?

i dont know my 2 brown/tan, 1 purple and 1 white with black stripe wires do?

justin

[CKTofu]

Thanks! I had swapped out the related 10A fuse already (though the old one looked fine), and I doubt the Engine Main relay is faulty, given that I doubt the ECM and fuel injectors are having problems, but I have a spare of that relay, so I might just swap it to cover my bases.

I took a look at the O2 sensor's voltage readings over the OBDII reader, and it was reading a voltage of "--V", and no indication of it actually giving out a proper reading. Looks like I got a dud, so I'll get a replacement.

[CKTofu]

Double-posting for an update.

Swapped out the rear oxygen sensor with a new one. I suspect the heating circuit in my original sensor was malfunctioning, and this seems to have solved the initial bad readings at startup. Problem being it didn't solve the issue completely.

Fuel pump, ignition coils, spark plug, rear oxygen sensor have been swapped. Any other ideas? Might swap the front oxygen sensor. Last error I saw was p0597 (which doesn't make a huge amount of sense to me). No p0137 error anymore, so at least there's that. Might also clean out the throttle body again, though I doubt it'll help.

EDIT: Update: The only code being thrown is the p0597, so I've ordered a replacement engine coolant thermostat. The bucking has been gone for a few days (still throwing the p0597 code once in a while though), I suspect either the current thermostat has completely gone, or it/whatever the problem really is is just giving my some time off. Part will show up in a week or so, hopefully I'll swap it out the weekend after this coming weekend and all will be well. If I replace it and don't see the problem again I think I'll be home free, else I'll swap the front O2 sensor, though I doubt it is a problem..

FINAL EDIT: Everything's fixed. I'm not sure if the thermostat was influencing the bucking, judging by how nothing seemed to change when I swapped it out (aside from getting rid of the error code it was throwing). The car started throwing the error code for the front O2 sensor after replacing the thermostat, so I swapped out the front O2 sensor as well, and now all is well. It's been 1.5-2.5 months since I swapped the front O2 sensor, and no issues whatsoever. All is well.

[fran4875]

I have had the same issue with my 09 aveo. press on the gas and it goes no where. after a few seconds it lunges forward and takes off. I have had the o2 bank 2 sensor replaced 3 years ago. Now my check engine light is on and this is happening. The codes they get say its a cam position sensor.. As I was told by my mechanic there are two cam position sensors one for the fuel and one for the exhaust. He replaced the one for the fuel and did a tune up. The next day after I picked it up the check engine light was back on once again. Now the code says cam position sensor and o2 sensor but bank 1. My mechanic said if its running fine dont worry til it acts up again so about 2 weeks now and its starting again. He said we could try to replace just the other cam sensor and maybe that will take care of the code regarding the o2 sensor. Does this make sense to anyone and does it seem right. The repairs on this are killing me. $500+ for the first 02 sensor $362 for the cam position sensor and tune up and now if I do it $150 for the second cam sensor and $400 for the o2 if the cam sensor doesnt work. My sons works on cars is the exhaust cam sensor or 02 bank 1 sensor something easy that he can put in?

[CKTofu]

I can't speak for the cam sensors, but the O2 sensors are very easy to swap out, just need a socket wrench and an O2 sensor socket.

[AstronautTurtle]

This happened to me a few weeks ago while camping. On my way home I had to do 85 to pass this guy going 40 ( he got pissed that I tried to pass him and sped up). All my instrumentation went dead and the engine stalled but came back almost instantly. I replaced the battery with an Intimidator agm group 78. No problems and runs like a champ.

[Merlins_Holden]

I have hesitation and poor idling when he car is cold, as soon as it is warm everything is fine. Ideas?