Every time I turn the car off it goes away when I turn it back on it isn't there runs ok. When it comes under load it start to show check engine 43 & 52 . Starts to run like crap. Feel like missing and loading up. It's a computer problem.  Need to find out if this little black electrical condenser is in line with the computer at all?  Dose anyone know what little black condenser next to coil is and what it dose?