error code P0171 - Toyota Yaris Forums

bronsin · 03-08-2010, 05:58 PM

Got this error code on my sons 2000 ECHO. Assume there is enogh commonality with the Yaris to make deductions valid. Book says P0171 can be:

air induction system
injector blocked
mass air flow meter
engine coolant sensor
fuel pressure
exhaust leak
opn/short heated oxy sensor bank1 sensor 1
heated oxygen sensorr

Anyone have any experience with this code? Or have any comments on how to evaluate each component listed? Im thinking its easy to check for exhuast leak.

03-08-2010, 05:58 PM	#1
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,792	error code P0171 Got this error code on my sons 2000 ECHO. Assume there is enogh commonality with the Yaris to make deductions valid. Book says P0171 can be: air induction system injector blocked mass air flow meter engine coolant sensor fuel pressure exhaust leak opn/short heated oxy sensor bank1 sensor 1 heated oxygen sensorr Anyone have any experience with this code? Or have any comments on how to evaluate each component listed? Im thinking its easy to check for exhuast leak.

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