how to the reset the ecu?

 

Easiest way is to disconnect the battery for a few minutes. Be sure you have radio code

 

you think it will reset the engine check light

 

it ought to if nothing is really wrong with it....just disconnect the neg terminal for a few minutes.

 

koo i think imma do it now thanks

 

damn how do you take it off... not as easy as it seems

 

Pull the 7.5 A radio back up fuse out from under the hood.

Much much easier than the aforementioned "easiest way".

 

That resets the ECU?

 

back up radio? i thought it was number 13 (ecu) on the fuse box

 

Dont know about the other cars, but the 97 2.2 its the 7.5 amp radio backup fuse under the hood.

 

Worked for me

 

yea i took out the fuse when i put my intake in

 

What does resetting the ECU do? does it change anything except for resetting the radio?

 

the ecu has settings that come from the factory. if it sees anything past those, it shows the check engine light. sometimes mods that you do your car can be out of the "normal" realm of operation for the ECU. by disconnecting it, you wipe the slate clean and it goes back to the day1 settings.

when you run your car again, after resetting it, the idiot light turns off and stays off if the problem has been fixed. if there is something that is still wrong with the car (missing O2 sensor for exp) then the check light will come back on.

edit: im preety sure thats it, but if someone knows differently correct me.

 

pull the fuse for the ecu, I just read thats the best way to reset it