Curious if anyone knows which fuse to take out to reset the ECU (remove slip indicator and CEL) on a 2011 Scion tC.

Older models was the EFI fuse.. but this car has 2. So.. I'm confused! lol

 

Just undo the negative terminal of the battery

 

ok i did that and the lights went off and appears to be driving a little better. it is now idling at 700 rpms.

 

Sounds about normal to me what caused your CEL?

 

code came up that my car was running rich from something within the maf sensor. not sure why..

well.. the car WAS working.. until yesterday while i was at sonic and it was bogging out so bad that my car almost shut off. got down to 200 rpms and started shaking like crazy.. had to rev it to go back up. then it was bouncing from 500 to 1000 rpms every 10 seconds. going to replace the intake with trd and see what that does.

 

Well, I MAY have found the problem.. although not certain. I tried cleaning the filter (actually, I replaced the filter with a K&N filter), cleaned the MAF sensor, reset the ECU.. no luck. Still getting the CEL and Slip Indicator.

Looked under the hood.. and there appears to be a significant enough amount of space between the downpipe and the header I have. I'm thinking there is a vacuum leak there so going to repair that then see what I'm getting.

Might also need another cel eliminator on the header. Put the one that comes with it on the 2nd o2 sensor which got rid of the light after installing the header. I'm also thinking this vacuum leak could be resulting in faulty codes being thrown and my levels all over the board.