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DannyR924
346 days ago
Hello and welcome to JustAnswer, my name is\*\*\*\*\*'m so sorry for your car troubles and hopefully I can help you out today. To whom do I have the pleasure of talking to today.
Customer
346 days ago
BrandonMy check [engine](/topics-engine-toyota/) light came on. I took it to a mechanic. He scanned the chip and it said the O2 sensor needed to be replaced. He showed me which one. I replaced it. Check engine light sTayed on so I disconnected the battery and it went off then 10 seconds later it came back on
Customer
346 days ago
Hello?
DannyR924
346 days ago
I'm here sorry.
Customer
346 days ago
What does this mean
DannyR924
346 days ago
Do you remember the code you had.
Customer
346 days ago
P0031
DannyR924
346 days ago
That code is for bank 1 before the cat and is a heated 02 sensor. Which side sensor you changed?
The sensor that needed to be changed is on the passenger side before the cat.
Customer
346 days ago
that's what I changed
DannyR924
346 days ago
Do a hard reset on your vehicle. You would need to disconnect both battery terminals for 30 minutes and touch both terminals together before placing them back on the battery post. Good luck. Also before you do that go to a nearest Autozone and make sure is the same code that you are getting.
Customer
346 days ago
Do I need to have the code reset?Or just the battery?
DannyR924
346 days ago
Autozone scans vehicles for free, so I would just want to see if it is still the same code before I o the hard reset. You might have a different code present. If the same code is present then do the hard reset.
Customer
346 days ago
Ok, thanks
DannyR924
346 days ago
You are very welcome and good luck.
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