Engine light and 4lo

2011 TOYOTA LANDCRUISER
146,000 MILES • 3.7L • V6 • 4WD • AUTOMATIC
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UMAIR_CAROL
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Sir, my vehicle's dash continue blinking with 4lo plus engine light steady on. I have spend so much money in different garages but no luck and no permanent resolution. they only reset my dash and it goes but after sometimes or next day it comes back. I need your advice how can I permanently fix it?


Appreciate your advice.
Thanks regards,
Umair
May 8, 2019 at 8:04 AM
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KASEKENNY
  • CAR REPAIR CONTRIBUTOR
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Hi Umair,

We can definitely help. We will need a little more to go though before we can narrow this down to possible causes.

Let's start with what diagnostic trouble codes are in the computer. This will point us in a clear direction.

Next, can you provide a complete list of parts, if any that have been replaced. Also, if they have made any repairs that did not include any parts, like a wring repair. You don't need to give a long story for each, just a list of parts/repairs is all we need. I just don't want to recommend something that has already been done.

Thanks
May 9, 2019 at 12:23 PM
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UMAIR_CAROL
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Hello, I am getting this code P0137 in my vehicle, but I don’t know which side sensor to change left or right? My vehicle is left hand side driving, if i m not wrong should be on the right side?

Thanks,
V/r
Umair
May 20, 2019 at 9:44 AM
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KASEKENNY
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That should be correct. Bank 1 is the side that has cylinder number 1. If you have doubts, you can swap the sensor side to side and see if it moves. If it moves then you know it is the sensor.

As long as you don't have an exhaust leak, the sensor sounds like the issue.

Please let me know if you need anything else.
May 20, 2019 at 3:31 PM
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UMAIR_CAROL
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Sir, appreciate you response. I was able to fix the problem and there is no fault. thank you, God bless you.

Regards,
Umair
May 21, 2019 at 12:43 PM
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KASEKENNY
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You as well.

Glad to help. Please come back with future questions.
May 21, 2019 at 2:51 PM
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ZUBAIR MUHAMMED
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Hi,

Sir, my vehicle dash is showing engine light with 4lo sign. can you please help to locate the location of bank 1 sensor1 and bank 2 sensor 1? I am getting codes p0031 and p0051 for my Toyota Landcruiser 2013 model v6.
Mar 16, 2021 at 11:26 AM
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KASEKENNY
  • CAR REPAIR CONTRIBUTOR
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We can help with that but we need to get a new post started for this one.

Here is a link to get a new one started. Thanks

https://www.2carpros.com/questions/new
Mar 17, 2021 at 6:49 PM
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