99 avalon xls CHECK ENGINE(P0125, P1153, P1155‎)

[avalon99]

I am getting 3 error codes becoz of the CHECK Engine light (autozone)
P0125, P1153, P1155‎.
The problem happened when I got this beauty painted within 5 days at a bodyshop. I suspected dust to be the main culprit and changed the air filter, cleaned the filter box below by removing, cleaning with water and drying it.
Cleaned the Air Mass Filter with CRC Air Mass Cleaner(worked gr8).
Reset the battery and the sign for gone yesterday.
The damn Check engine sign came on today and now, I am clueless as to

Cleaning the Air Mass Filter did make me feel that the car was brand new with no rough idling.

what I need to change. ?

[artbuc]

Originally Posted by avalon99

I am getting 3 error codes becoz of the CHECK Engine light (autozone)
P0125, P1153, P1155‎.
The problem happened when I got this beauty painted within 5 days at a bodyshop. I suspected dust to be the main culprit and changed the air filter, cleaned the filter box below by removing, cleaning with water and drying it.
Cleaned the Air Mass Filter with CRC Air Mass Cleaner(worked gr8).
Reset the battery and the sign for gone yesterday.
The damn Check engine sign came on today and now, I am clueless as to

Cleaning the Air Mass Filter did make me feel that the car was brand new with no rough idling.

what I need to change. ?

Very common problem. You need a new A/F (air/fuel) sensor on Bank 2 (closest to you when you open the hood). You are lucky because the B2 A/F sensor is much easier to get to than the B1 A/F sensor. Make sure you get a Denso. Bosch will NOT work right. You can get one pretty cheap from Amazon or Rockauto. After you are done, clear the code by disconnecting the battery for 30 minutes or so.

Do you have a CA emission car? If so, the A/F sensor will be more expensive. Make sure you get the right one.

[avalon99]

Thanks for the reply.
I will try removing it tonight, cleaning it with CRC, Reseting the comp and clearing the codes.

The car was running fine without any check engine signs for 4 years and the day it came out of the paint bodyshop, i got the check engine !! So surely looks like it needs a little bit of cleaning.

I will post the pics soon.

[artbuc]

Originally Posted by avalon99

Thanks for the reply.
I will try removing it tonight, cleaning it with CRC, Reseting the comp and clearing the codes.

The car was running fine without any check engine signs for 4 years and the day it came out of the paint bodyshop, i got the check engine !! So surely looks like it needs a little bit of cleaning.

I will post the pics soon.

You can't clean an A/F sensor. Check the wiring. Disconnect and reconnect the sensor. Did the body shop open your hood for any reason?

[avalon99]

Well..... Tried to disconnect / connect the wiring.
Cleaned the wiring with CRC cleaner.
Disconnected the battery for 5 mins and connected again.

The check engine sign went off in the 15 min(4 mile) driving I did yesterday night after doing all this. Again today morning within half a mile the sign is back !!

Clueless.........

I tried to get the A/F Sensor out(in front of the radiator), but its too jammed in.......... Put some PB Blaster Oil in there to loosen it up..... if it does'nt come off easily, is there a good tool (rental) to remove it ?

I heard Advance auto parts give this rental tool for 100$ (its free when u return).

Will Update u what happens tonight or on the weekend.

[robcam13]

there is a o2 sensor socket that most techs use. most o2 af sensors will not come out without a fight.good luck