Reset Check engine light after service
1.)turn the key to the on position (do not crank over the motor....dont start the engine) 2.) wait 3 seconds.... and then fully step on the gas and let go fully 5 times with in 5 seconds.... (ex. wait...3....stomp.stomp.stomp.stomp.stomp 3.)wait 6seconds....(not steppig on gas pedal) 4. FULLY PRESSS down on gas pedal and hold for about 10 seconds. 5.) the check engine light should be flashing. should be flashing 10times and stop a few seconds and then 10 and stop.....etc. 6. hold down pedal again 10 secs. 7. release pedal.....turn key off..... 8...wait a few seconds and turn the motor on.....check engine light should be gone.
Bad spark plug made my check engine light burn on my 03 Frontier. The kid at the parts store correctly diagnosed #2 plug misfire but refused to turn off the check engine light. New set of NGK Iridium plugs cured the misfire problem and was able to turn off the check engine light with avatar666's very helpful tip.
did not work on my 2001 frontier
On older models, disconnect neg battery cable for 24 hrs
Just did what avatar666 suggested on a 2012 nissan frontier sv king cab, worked like magic once I got it right ( after a few tries )... have all my power back and my stupid check engine light / system disablment fixed after the dealership screwed me over by spraying fluid film on my brake spring hold down clips ( which I had to wash off with WD40 ), under the guise of a ' brake inspection'... the adage holds true - if you want it to work, learn to mechanic it yourself
BTW, on the newer models, if you disconnect the battery, it doesn't get rid of the problem I corrected with avatar666s method - less than 24 hours is temporary, more than 24 hours lasts about 3 days... beware of connecting the battery without the key in it, as I got a nasty shock when the alarm started to draw juice... stupid computer nonsense...
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