96 Toyota Avalon Check Engine Light

[amauryz]

My 96 Toyo Avalon check engine light came on. I borrowed a tool to read the computer code and it detected code P0135 - Sensor Heater - Bank 1 Sensor 1 - 02 Sensor Heater Circuit malfunction? The autopart clerk tells me I need to go to the dealer, because he does not sell the part in question. Can someone please tell me what I need to do to correct this problem. Thanks +++

[Joe W]

It is probably the O2 sensor on that bank.

[Toysrme]

That's because they didn't know anything.
o2 sensor's normally only last 90-100,000 miles, so it is more than likely time for your to replace yours anyway.
Start by resetting the ECU (Pull the EFI fuse for a second & replace it).
If the code returns (It should) replace the rear(bank1) oxygen sensor. You'll get hit with a nice price, being a more complicated 4 wire type.


Gonna take a hit. You've got 4 wire o2 sensors. Normally go for $60-90usd.

[toyomechanic421]

just make sure u get the right part. air/ fuel sensor means before cat, o2 sensor means after the cat. Bank 1 is the head closest to the firewall.And sensor 1 means the first sensor after the cat. use some kind of rust gone or what ever u can cause being heated and cooled so many times makes the threads fragile, if it siezes then u must replace the hole pipe. clear the code by removing the efi fuse if you dont have a scan tool.

[Brian R.]

Use your VIN to get the part number from the Toyota parts department, even if you don't buy it there. Then you will get the correct sensor.

Bank 1 Sensor 1 is the sensor next to the head and in front of the cat converter for the head nearest the firewall. Not after the cat.

See the diagram on page one of:
http://www.autoshop101.com/forms/h37.pdf

[RTM98607]

I noticed that you read the diagnostics for your car. I have a '98 Toyota Avalon with a 'check engine' light on. I assi=ume it is the O2 sensor, but I'd like to read it from the diagnostics connection. It is not the standard OBD2, but rather a round connector. Where do I get the connector? Does the connector work with a OBD2 reader?

Thanks!

Mike

[Brian R.]

See if this helps:

http://www.autoshop101.com/forms/h27.pdf

http://www.off-road.com/toyota/tech/codes/

The connector sounds like an OBDI connector. Check the end of the autoshop article.

Your car should be OBDII compliant. Check under the dash - driver side by the center console for an OBDII connector.

[mooseketer]

What brand scanned did you use?

I have a '98 avalon and would like to buy a scanner but would like to get the correct scanner the first time around?

Is the plug in the '98 a OBDI or and OBDII?

[mooseketer]

Hi Mike,

What did you find out about the '98 Avalon scanner? I'm looking to buy a scanner for my '98 Avalon but don't know which one to buy. Any suggestions?

[Joe W]

Ant OBD2 scannerwill work, make sure you locate the correct connecter under the dash.