Check Engine Light...code P0135.....need Advice!

[Black GS400]

2001 LS430 with 42K miles

CEL came on....pull a P0135 code. Heated Oxygen sensor (Bank 1 sensor 1)

Questions:

To fix the problem.....is it pretty straight forward....... go ahead and replace the sensor?

Where is the ( Bank 1 Sensor 1) located? Anyone can post a picture to the location?

How difficult of a job is it? Does it require any special tool?

Where is the best source for the sensor?

Would a Toyata part# 89465-50060 be the same sensor .......maybe cost less than a Lexus part# ?

Would a Bosch sensor be the same?

THANKS IN ADVANCE for your advice!

Dan

[wandawoods]

about a month ago, I had to replace one of 4 OS sensors on my 96 SC4 (code P0135). I purchased an universal Bosch O2 sensor (part# 15733, about $80), and it works like a charm (cleared the error code right out!). the original O2 sensor removed was marked "toyota 89465-50060", the same part you are referring to.

[Black GS400]

Help!

Anyone can point out WHERE the bank 1 sensor 1 is located?

[LScott400]

The following is only a deductive guess on my part:

#1 cylinder is on the driver's side of the engine. The main O2 sensor is followed by the sub O2 sensor.

So I would guess that "bank 1 sensor 1" is the driver's side main O2 sensor.

This link is a tutorial on older models and should be very similar to yours.

If I have "deduced" wrong, then hopefully someone will set us both straight. :)