check engine light on. i called toyota place and they said 70 bucks to check for code, someone told me Autozone does this free, they do!! code is 071 too lean. guy starts rattlin off 25 different things that could be wrong, tells me to get a propane torch and put it to all my hoses and if my engine revs up then i've found one of my problems........
any body have a good idea where i could start, don't really want to pay toyota place 5 or 6 hundred bucks to do some checks that i could do if i knew where to start.
thanks for any info,

joe

txgreasemonkey

The problem may involve the Oxygen Sensor, which controls fuel injector duration. If the duration is too short, it can create a lean burn situation. Another possibility is the Mass Airflow (MAF) Sensor, which helps regulate air/fuel ratios.

Have you installed an air induction system? Be sure and stay away from oil-impregnated air filters--they can play havoc with MAF Sensors--use pleated air filters, instead.

kitch428

Hi, p0171 system too lean is what you have. you need to change out the mass air flow sensor (MAF). It's dirty and a new one will get you all fixed up. StAY AWAY FROM k&n AIR FILTERS OR ANY OF 'EM CHARGED WITH OIL.