2010 Camry stalls at idle

[HyundaiAbuser]

Today my girlfriends 2010 Camry started stalling at idle. When sitting the rpm slowly drop down to stall and the engine idles very rough during that patch of time. When it is revved the engine seems perfectly fine. What do I need to be looking for here?

 

[HyundaiAbuser]

Also no new engine codes were pulled there is only a permanent o2 sensor code.

 

[The Critic]

Also no new engine codes were pulled there is only a permanent o2 sensor code.

That could certainly be a cause of the issue.

 

[edyvw]

Also no new engine codes were pulled there is only a permanent o2 sensor code.

Only? How about replacing O2 sensor?

 

[supton]

Look at the intake track, look for the plastic hose that runs from intake to airbox. On our '11 (which I think is a different motor) a piece fell out, making for a 1" diam air leak. Not sure what the part was, some sort of resonator I suspect. After asking around I wasn't the only one who had it pop out (and it popped right back in too).

That said, O2 sensors are not typically something to ignore. I would think it would idle ok but I guess it depends on which one went, and why. What code is it?

 

[HyundaiAbuser]

I have since found out that her father cleaned the battery terminals and reset the computer just prior to this happening. That is the only immediate change to the car before this incident. I'm thinking that ill let the computer reacclimate and look into the oxygen sensor too.

 

[JC1]

Does that car have an idle air control that may clogged up? What about the throttle plate needing cleaning?

 

[Amkeer]

If it has a Check Engine illuminated that should be fixed right away. The o2 sensor is not something to ignore. It may have a upstream and downstream sensor. I would at least change the one. I typically change both when I am doing it.

 

[SatinSilver]

I have since found out that her father cleaned the battery terminals and reset the computer just prior to this happening. That is the only immediate change to the car before this incident. I'm thinking that ill let the computer reacclimate and look into the oxygen sensor too.

I was going to ask earlier if the battery was disconnected recently. If the idle relearn procedure wasn’t done it will exhibit the issue you mentioned. Although just driving it should work.

 

[spasm3]

Also no new engine codes were pulled there is only a permanent o2 sensor code.

What code is that? What do you mean by permanent o2 sensor code?

 

[philipp10]

I had a similar issue with a 2001 Camry that turned out to be the EGR valve. Took it off and cleaned it. It was stuck open. Simple fix. Only problem I saw was at idle it stumbled a bit.

 

[HyundaiAbuser]

The code was p0137 which I believe is for the downstream o2 sensor. Since yesterday the car has been working relatively well but I’ll try to convince her to let me change it.

 

[Starman2112]

I would start with cleaning the throttle body before throwing parts at it.

 

[mattd]

The ECM has to relearn the idle. Toyota’s don’t like to idle after a battery disconnect until you let it sit and run for a while. The do the same with it idle in drive and reverse.

I’d also change that O2 but likely not the cause of your problem

 

[MRC01]

When my 2004 Subaru did this, there was no OBDII code. After much troubleshooting it turned out to be a bad idle air control valve. Replaced that and it's been running great since.

However, several other things could cause this, O2 sensor, crank or cam position sensor, etc.