How do I reset a check engine light after I had chnged air filter and forgot to reconnect air sensor cable?
I heard you can disconnect the battery for a while and this might work but I don't think it erase the code. It's also not good as your enginer has some memory that is good to keep. The best thing is to connect an auto scan tool to erase the codes. Autozone and Advance will do it for free or you can buy your own tool for 60 to 90 dollars.
you can remove the ECM fuse for a few minutes and put it back in,or you can unhook the NEG side of the battery also for a few min and reconnect,eather should cut off the light,it clears the codes from computer,wont hurt a thing.
Battery cable disconnect worked just fine. Thanks "papa!"
you welcome,if you have any more questions,just ask.
hi, I have a ford expedition 2012 xlt , before two days ago I added to the fuel tanks an octane enhancer, but after while the check engine goes on, I disconnected the NEG cable of battery, the check engine goes off, but yesterday goes on again suddenly, I did the same thing and go off again , what I should do the be sure it will not appear again? thanks Ranj
ranj1983 it reappears until the issue is fixed - every 30 miles it cuts on again
My check engine won't go off. What could be the problem
Oh yeah , Before one month my Expedition 2012 check engine start again, and i take my ca to the ford dealer and they inform me that it come from Oxygen sensor , so they replace it but after 2 days start a gain the dealer says it is from Injectors and we have to replace it as well so we did that as well, and now start again , i wanna know what should i do and almost i spent more than 850$ on it and still start on, what can i do to make it off. many thanks
Same thing happened to me... Engin light came on and prob showed cylinder 8 too many misfires... Changed egnition coil. Twice and the 3rd time I got that code spark plugs showed up... That's prob what it was the second time too. I knew my vehicle was too new for foolishness already. 2013 w: 88G miles I'm grateful that's all it was though. Now I need this light off.
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