My check engine light came on,I have a touch screen that works but lights up when it wants to.What my problem is that the light came on and I did a diagnostic check when the screen lit up and it said an engine eletrical problem.What my problem now is this, where do I find the code reader plug for this thing?I can't seem to find it and I'm not totally stupid to where they usually are.Sometimes it'll stall bad for a few seconds maybe a minute.Then it snaps out of it and runs fine I'm hoping it just the 02 sensor but like I said I can't find the plug for it any help would be great.