Top Toyota Rav4 P0171 Causes There are many things that can cause the P0171 trouble code on the Toyota Rav4 Here are the most common ones Vacuum Leaks– With the Toyota Rav4, one of the most common cause for the P0171 code to show is a vacuum leakTake a look around and see if you can find the vacuum leakWhat do the plugs look like any deposits of oil or carbon?P0305 TOYOTA code tech notes The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 5
P0300 P0308 Cylinder Misfire Detected Causes Common Problems Diagnostic
