what is the 4Runner "Air to fuel ratio heater Bank 1 Sensor 1"
#1
what is the 4Runner "Air to fuel ratio heater Bank 1 Sensor 1"
Hi,
I just had my 60K service done and the next day the CEL and VSC OFF and VSC TRAC lights came on. I brought it back thinking it was directly related to the service they did and they told me it was a pure coincidence and would cost me $429 to fix (I told them not to touch my car). I haven't had a single light on in the four years I have owned it ('02 4Runner limited). I didn't quite believe them. What the code on the invoice says doesn't make sense.... "car was diagnosed and fault was traced to PO1133 Air to fuel ratio heater bank 1 sensor 1". Does anyone know which code it actually relates to (maybe: P1133 - A/F Sensor Circuit Response Malfunction (Bank #1 Sensor #1)?
Thanks very much for the help.
I just had my 60K service done and the next day the CEL and VSC OFF and VSC TRAC lights came on. I brought it back thinking it was directly related to the service they did and they told me it was a pure coincidence and would cost me $429 to fix (I told them not to touch my car). I haven't had a single light on in the four years I have owned it ('02 4Runner limited). I didn't quite believe them. What the code on the invoice says doesn't make sense.... "car was diagnosed and fault was traced to PO1133 Air to fuel ratio heater bank 1 sensor 1". Does anyone know which code it actually relates to (maybe: P1133 - A/F Sensor Circuit Response Malfunction (Bank #1 Sensor #1)?
Thanks very much for the help.
#3
Contributing Member
Join Date: Aug 2004
Location: San Jose,CA
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by gh128
Hi,
Does anyone know which code it actually relates to (maybe: P1133 - A/F Sensor Circuit Response Malfunction (Bank #1 Sensor #1)?
Thanks very much for the help.
Does anyone know which code it actually relates to (maybe: P1133 - A/F Sensor Circuit Response Malfunction (Bank #1 Sensor #1)?
Thanks very much for the help.
You may also want to check,
--Open or short in the AF sensor itself ( first one toward the engine- check the connectors, harness, and hoses for all the following...)
--Check air induction system
--Check fuel pressure
--Injectors
--ECM
Last edited by Noliwan; 12-02-2005 at 09:27 AM.
#4
Registered User
Join Date: Sep 2003
Location: Albuquerque, NM
Posts: 380
Likes: 0
Received 0 Likes
on
0 Posts
There may be something even more subtle than a simple connector.
Take your vehicle to Autozone and have them retrieve ALL the codes, write them down and post back here.
First off, what exactly did they do for the 60K service?
And 2nd, is your car a California Emissions vehicle?
Take your vehicle to Autozone and have them retrieve ALL the codes, write them down and post back here.
First off, what exactly did they do for the 60K service?
And 2nd, is your car a California Emissions vehicle?
#5
I was just going to buy the generic code reader at harborfreight for $50, will that work on my truck ('02 4runner)?
http://www.harborfreight.com/cpi/cta...emnumber=46030
I'm almost positive it's california emmissions. But I will check and post back.
For the 60k work, they wanted over $500 to do a complete job, but there was so much fluff, so I specifically told them to just change the plugs, oil, air filter, coolant, differential and transmission fluids (I just rotated the tires and checks the breaks so that was not neccesssary). It was like $250.
Thanks a lot for the help guys.
http://www.harborfreight.com/cpi/cta...emnumber=46030
I'm almost positive it's california emmissions. But I will check and post back.
For the 60k work, they wanted over $500 to do a complete job, but there was so much fluff, so I specifically told them to just change the plugs, oil, air filter, coolant, differential and transmission fluids (I just rotated the tires and checks the breaks so that was not neccesssary). It was like $250.
Thanks a lot for the help guys.
Last edited by gh128; 12-02-2005 at 10:27 AM.
#6
Something to look at (though kind of random) is a possible loose ground wire on the intake manifold. It's quite common to loosen it to change the drivers side bank of plugs and forget to tighten it when done. This will cause this code as well as the 1135 code.
The wire is on the side of the intake right next to the diagnostics plug.
Oh yeah and quite going to the dealer for service unless it's warranty!! They are twice as expensive and offer no better service than a reputable shop.
My $.02
The wire is on the side of the intake right next to the diagnostics plug.
Oh yeah and quite going to the dealer for service unless it's warranty!! They are twice as expensive and offer no better service than a reputable shop.
My $.02
#7
Registered User
Originally Posted by gh128
I was just going to buy the generic code reader at harborfreight for $50, will that work on my truck ('02 4runner)?
http://www.harborfreight.com/cpi/cta...emnumber=46030
http://www.harborfreight.com/cpi/cta...emnumber=46030
While you can clear trouble codes by pulling the "EFI" fuse under the hood, if you have a laptop, spend another $50 and buy a reader that will also show you codes as well as a LOT more info: http://www.obddiagnostics.com/
There are MANY other choices for standalone, PC, and Palm OBD II tools. Don't spend $50 on just a _code reader_.
Trending Topics
#9
Registered User
Originally Posted by gh128
perfect, I'll buy that one. Thanks.
#10
Finally got my OBDII- CODE P1135
I finally ordered the reader and the code says P1135. I looked it up again and it says, "A/F Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)". After reading a ton of posts on this topic, I have concluded I have California spec. and need to replace the first A/F sensor (as compared to an regular O2 sensor for non california emmissions). I've read that it takes 15 minutes to change the sensor, but need more specific directions on how to go about doing it. Can anyone help?
Thanks very much.
Thanks very much.
#11
Contributing Member
Join Date: Dec 2005
Location: Vancouver BC
Posts: 402
Likes: 0
Received 0 Likes
on
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
bigblue82
General Electrical & Lighting Related Topics
10
07-06-2015 08:27 AM