How do i reset the CEL?

 

Unplug the battery overnight, and the ECU.

Could be wrong.

 

where is the ecu for me to unplug it???

sorry i would do a search but im at my girlfriends house which is out in the country and its a 26.4 kbps dialup connection....it took me like 15 mins just to load these forums


i tried unplugging the battery but i only left it unplugged for like five minutes...and i went in the car and pushed the brake...but i'll try it overnight and unplug the ecu but i am just not sure where it is located or what it looks like.

 

It's in the passenger kick panel. Right by their feet, up againts the shell of the body.

 

if you completely disconnect the battery (both + and - ) then do you really have to unplug the ECU?

Actually, try this (you still have to remove the ECU, but you don't have to go under the hood):

http://www.ka24development.com/ecu_codes.html

I did this method when I bought my car and it worked... your results may vary

 

awesome thanks guys...i'll have to try it on a weekend im starting my new job today...i'll let you know how it turns out.

-okan

 

i had a check engine light.... i did the same thing you did... unplug both + and - for about 5 mins... didnt work... you have to do it for like an hour or overnight.... i did it for overnight and the light was gone... no discconnetion of ecu

 

i still havent had a chance to do anything yet....but i will this weekend...i'll try doing it without the ecu first....im hoping its not an actual problem. thanks again for all your replies.

-okan240

 

Hey, is a 90 s13 non OBD, or OBD0. i noticed there is no CEL on the dash, and my motor seems to misfire a bit so i was wondering how i would know without a CEL. thanks

 

shouldn't you check what cause the light to turn on in the first place? sorry im not much help.

 

Your ECU doesn't have a status light?

 

The SOHC depends on the emissions system you have ( federal or cali) I dont have a CEL either , so you have to actually look on the ECU itself.
So for future reference
CALIFORNIA emissions= CEL
Federal emissions=NO CEL( manual check of the ECU)

 

ahh ok. so i gotta check the ECU.. if theres any problems it will flash or be continuously lit?