Check engine light Toyota Rav 4

Asked by Oct 21, 2019 at 01:23 PM about the 2011 Toyota RAV4 Limited V6 4WD

Question type: Maintenance & Repair

Check engine light on in my Toyota RAV 4, 6 cylinder. Tune up did not fix. Shows misfire in cylinder #1. Could this also be the loose hose or the gas cap? Mechanic cannot figure out the issue.

2 Answers


A misfire in a single cylinder can be caused by a bad plug, wire, or coil. It can be caused by a dirty or defective fuel injector. It can be caused by a blown head gasket or anything else that could cause the cylinder to lose compression. You need a better mechanic.

2 people found this helpful.

Thanks for your response. I do know he checked the cylinder. Previous scans of the system (lights going on/off for about a year along with 4WD & anti-skid) showed other codes I cannot name.

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