2001 Lexus ES300

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Mar 23, 2018 | 07:33 PM

Lexus43

Thread Starter

Driver School Candidate

Joined: Aug 2014

Posts: 14

Likes: 1

From: Hawaii

2001 Lexus ES300

Hey Guys,

2001 Lexus ES300

My CEL is on with the code P1155 A/F Sensor Heater Sensor Circuit Malfunction.

What is the Denso or OEM part number for this particular air flow sensor, I think there are two. Which one do I need for this particular code?

Any tips on removing and installation with this sensor?
Thanks!!

Mar 23, 2018 | 10:23 PM

LeX2K

Lexus Fanatic

Joined: Sep 2010

Posts: 26,022

Likes: 4,319

From: Alberta

Bank 2 is super easy, search Youtube here's the first one I found listed.

OEM # is 89465-33350 or Denso 234-9021 beware of fakes on Ebay. I've never replaced one but I'm told the front and back banks are the same except for the wire length.

Mar 24, 2018 | 09:46 AM

GoodRevs

Instructor

Joined: Dec 2009

Posts: 873

Likes: 53

From: NH

Yep, it's easy. My post from late 2011 when I had to do this mirrors the above.

Quote:

Originally Posted by GoodRevs

All done. For future reference: Denso part number 234-9021 is the OEM sensor and replaces the Bank 2, Sensor 1 (first) A/F sensor when code 1155 is triggered. Amazon has the best price I could find. Time involved is like 5 minutes, couldn't be easier.

Apr 2, 2018 | 11:35 AM