I have a short in my 30 amp D.C.C "ECU-B”, "RAD NO.1” and "DOME” fuses which is causing all sorts of problems which include hard shifting, throwing OBD codes P0420 and P0793, to having an annoying squealing engine noise that is coming from the car speakers. I did recently install a new aftermarket stereo in the car which was working fine until my husband decided to go messing around with things and even somehow hooked the stereo up direct which I believe could be the reason for the headache I've experienced over it. Now I am no mechanic and have never even worked on a car before so I am learni… Read complete

I'm trying to fix this problem but I can't find the code number PO172
I changed the sensor and cleaned the fuel exhaust and the problem did not solve
Please help me solve the problem

I bought a Toyota Camry 2019 but it came with a check engine light. I tried changing exhaust catalyst sensors, catalyst, engine oil several other parts including water heater sensor fuel pump etc but it still persists what should I do?

After a year plus that a mechanic worked on the engine changing the camshaft, I noticed that Whenever I try to accelerate it will bring out the white smoke from the exhaust. Could it be that it's because I have not really used it since he changed the camshaft?