on a ' 97 mazda 626 trying to reset check engine light how do I do it?

Answer 1

There are many components that work together in the engine to maintain optimal engine performance and economy.
A service engine soon, or check engine light indicates that there is a sensor that is reading a condition that is "out of range".
Simply resetting the light does not solve the initial cause of the problem.
Replacing a number of parts trying to troubleshoot the problem in the hopes of getting the light to stay off is a tremendous waste of time and money.
The simplest, and most economical way to alleviate your issue, is to have the computer codes checked by a reputable shop to determine what caused the computer to signal you to begin with.

That being said, if per-chance you feel the need to reset the light in the hopes that it was a "glitch" of some kind, you could disconnect the negative battery terminal for a couple of minutes to clear the check engine light.

Answer 2

Unhook the negative battery cable and let the car sit for about an hour. This will kill the backup battery in the ECM and reset any codes. Your car might run rough for a little bit afterwards until the computer re-learns the fuel map, but then it should be fine.

Answer 3

Well first you need to repair the reason the light came on in the first place.
You can try removing the negative cable for say 3 minets. Some times this works, other times you have to have the light turned off with a car scaner.
As I said just turning off the light if you havent corrected the reason it came on in the first place it will turn off and after a short time turn itseld on again.

Answer 4

goldwing is correct.