Question about 2011 Toyota RAV4
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Posted on Jan 02, 2017
This is almost always caused by a failing mass air flow sensor. If you had it replaced with aftermarket you may want to replace with oem to avoild problems. Thanks P0171 Fuel System Too Lean (Bank 1)Possible Causes Setting Conditions Base engine "mechanical" fault affecting one or more cylinders Check for air leaks after the MAF sensor Check for air leaks in the Air Induction system (e.g., in the intake manifold) Check for air leaks in the exhaust manifold and in the exhaust pipes Exhaust leaks located in front of the AFS or HO2S location Fuel control sensor is out of calibration (e.g., ECT, IAT or MAP) Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter) Fuel injector (one or more) dirty or pressure regulator has failed HO2S has failed (it may be contaminated with fuel, silicone or water) Vehicle driven low on fuel or until it ran out of fuel
Posted on Jun 08, 2009
SOURCE: Code 25 for Toyota 3.0 3VZE
code 25 air fuel ratio lean condition indicated.POSSIBLE CAUSES- AIR LEAKS IN THE INTAKE MANIFOLD -EXHAUST MANIFOLD -EXHAUST PIPES- FUEL CONTROL SENSORS IS OUT OF CALIBRATION LIKE THE-ECT IAT MAF -LOW FUEL PRESSURE LIKE- FUEL FILTER CLOGGED PRESSURE REGULATOR FAILURE- ONE OR MORE FUEL INJECTORS RESTRICTED -HO2S ELEMENT IS CONTAMINATED DETERIORATED OR HAS FAILED -VACUUM HOSE IS DISCONNECTED BROKEN LEAKING OR LOOSE.
Posted on Jul 20, 2009
Change bank 1 sensor 1 this will solve your problem. Tihs is a fuel issue nit a thermostat issue.
Posted on Oct 15, 2009
Testimonial: "I did what you suggested and it worked. Thanks. "
check the mass air flow sensor there maybe dirt on the filiment inside the sensor causing false readings. cleaning or replacing it may make the codes go away.
Posted on Nov 18, 2009
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