o2 sensor out of range, misfire if running rough, too lean injector , fuel filter???
The check engine light in a 2004 Toyota Tacoma can come on for many reasons. It could indicate an exhaust leak or a problem with the engine.
Check for a worn or loose drive belt.
The most common causes of check engine light malfunction are a faulty oxygen sensor, loose or faulty gas cap, or a faulty catalytic converter. These are all easily fixed problems.
um yeah it does have one
This could mean any number of things. I have a 98 Tacoma and the "check engine" light has only come on once in 8 years ... and that was because I didn't have a gas cap at the time!
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Have vehicle scanned to determine the problem
The Check Engine Light has nothing to do with oil changes. It is on because there is a problem with the emissions system.
After the repair, you reset it with an OBD2 scan tool.
It could be anything, but the most common problem is the O2 sensor.
There are pages and pages of causes for the check angine light. Have it checked fro codes with a scan tool.
I believe it is blinking because there is a misfire inside the engine. Meaning that the timing is off. This could be because the timing belt may be old and the teeth are chewed and are not as rigid. That was the case for my 96 tacoma.