the connection is on drivers side at bottom of dash, where driver sits. use a obd2 scanner to extract codes. if any codes you can use scanner to erase codes when fixed.
You start by having it checked for codes. The light comes on because the computer has detected a fault. You need to know the code to know what to repair.
One of the sensors detected a fault that occurred at least 2x, but there are about 100 different ones. you need to retrieve codes from car's comp with a code reader
Because the sensors detect an active fault, so a DTC is displayed. You'll need to have an OBDII scanner or code reader connected to read that fault in order to know what it is, because there are many different faults which could cause the check engine light to display.
Plug in an OBD2 code reader. You can borrow, rent or purchase an OBD2 code scanner at most auto parts retailers.
96 on up you need a code scanner,you can take it to auto zone to have the codes read ,free of charge.
Auto Zone will check your computer codes for FREE... They can also clear them.
Because there's an intermittent issue which needs to be addressed. You need to have the DTCs (fault codes) read to find out which codes you have, what your active codes are, what your inactive codes are, and how many counts of each fault you have.
You need a scan tool to read fault codes.
you need to have the check engine/service engine soon fault codes read to determine what the fault is.
you likely mean "check engine" which could be a multitude of reasons,you need to plug it into a reader to desipher the code Many parts stores will read the codes for you for free and depending on the fault you can get the parts there to do the job.
Check the air filter is not clogged. Get a garage to read the fault codes and fix it.
They will scan your computer for fault codes for free in most areas.