Question about 2002 Mazda Protege
some check engine lights come on cars for several reasons like the first person said you can get it scanned by a garage...........most cases it can be a sensor if you turn your car on but not over the check engine light will blink get a piece of paper and a pen now when the car is turned on but not started watch the light count how many times it blinks 12345 and so on when it stops for a sec and than starts blinking again you are in a new count of blinks 12345 so for example if it flashes 3times and pauses starts again and flashes 4times your code to look up is code# 34 now with this you can go on to the web and search the engine trouble codes look up code 34 and you will know whats wrong with it.........most cases its the O2 sensor (oxygen) now these sensors can run you $150.00 each installed but a garage will likely charge you almost $800 to make it disappear by installing all new sensors the scanner will only scan to the first trouble zone when that's fixed than it can scan 2nd if there is another and so on.........................
if you unhook the cars battery and wait a few minutes the cars computer will reset itself to turn off the check engine light if that light comes back on than the computer has found a problem now its time to find out the trouble code or have it scanned
hope this helps and saves you money
Posted on Mar 09, 2009
You can take it to a repair shop and have them plug a scan tool into your car to check to see what is wrong. or now some auto parts stors will do the same for you for free
Posted on Mar 09, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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