Question about 2000 Toyota Sienna
See diagram below. It is the cylinder bank of the engine in front as you face the car from the hood.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
Sound like a DTC P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
A code P0141 may mean that one or more of the following has happened:
* open or short to ground in the wiring harness
* O2 heater circuit wiring high resistance
* O2 heater element resistance is high
* Internal short or open in the heater element
Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.
Posted on Mar 16, 2011
7 out of 10 times that means that one of the cat's have gone bad. Most of the time it happens when your mileage is around 100,000 miles. The only thing is to do is to change the bad cat.
Posted on Aug 30, 2009
It's under the intake manifold...oh joy
Posted on Sep 19, 2009
Testimonial: "you are a nice guy. i'm so gratefull you have this in the networth. thanks."
I would check the O2 sensor, and if it checks bad, replace it, and clear the trouble codes. If the light comes back on, you may need to check further. .
Posted on Oct 28, 2009
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