mass airflow sensor covered in emissions or powertrain warranty?
#1
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hi checked the code and got p0171 which seems to be mass airflow sensor for most ppl. will the emission warranty or powertrain warranty cover this, car has 65k and 4 mos of powertrain and more emissions warranty left.
thanks
anup
thanks
anup
#2
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It's covered under the powertrain. it is an engine part, not an emessions one.
It's not common for them to be bad, tho like anything a few fail. Sometimes they can get oily & dirty. A simple q-tip & rubbing alcohol will solve that.
I think you need to fix the common causes, like:
#1 checking for vacuum leaks
#2 check/replace main o2 sensor<s>
It's not common for them to be bad, tho like anything a few fail. Sometimes they can get oily & dirty. A simple q-tip & rubbing alcohol will solve that.
I think you need to fix the common causes, like:
#1 checking for vacuum leaks
#2 check/replace main o2 sensor<s>
#4
![Cool](https://www.clublexus.com/forums/images/icons/icon6.gif)
http://us.lexusownersclub.com/forums...howtopic=26449
Download the 2001 FSM.
A vacuum leak can be anywhere on the intake tract of the engine. Normally it's simply a disconnected, or split hose.
There is a main sensor on each exhaust manifold, and a sensor after the cat convertor. You're looking at the main sensors.
Download the 2001 FSM.
A vacuum leak can be anywhere on the intake tract of the engine. Normally it's simply a disconnected, or split hose.
There is a main sensor on each exhaust manifold, and a sensor after the cat convertor. You're looking at the main sensors.
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