Hey guys, been absolutely racking my brains trying to figure out why my engine is misfiring. Will start with a quick run down.

1) Car was not starting at all, figured out some rats chewed up the wires for my fuel injector #4, was able to fix that easily.

2) Went on vacation to mexico for a week. (was really really cold here, in case that might matter) And my car would not start again. Checked the same wires to see if there were more rats in the engine and all the wiring seemed, fine. I had a friend come over and help and he could not find anything at all either

3) After reading some other forums/tips/advice, I thought I should try to spark plugs, so we got new spark plugs and wires and changed those out. (The ones in the front were pretty oily and the ones in the back were pretty dry.) We finally got the car to start but you could tell right away something was wrong with it. It was running extremely rough.

4) We hooked up a computer and I keep getting these codes.
P0300 random engine misfire
P0202 pd Injector 2 circuit malfunction
P0204 pd Injector 4 circuit malfunction
P0206 pd Injector 6 circuit malfunction

I've also replaced the battery as I have read that can create the engine misfire code, check all the wires.

I am also getting whitish smoke coming out of the front of the engine as well.

I'm just really confused the smoke is coming from the front, but getting fuel injector codes from the back of the engine.

Also a side note* I noticed we bent a fuel injection line that comes out of the front of the engine during the change of the spark plugs. I have replaced that since then, but could there be extra fuel in the engine causing the white smoke?

Any ideas what it could be? Or what next steps I can take? Or anything I can test to get this going?

Thank you in advance, I would really appreciate any help with this headache.

Your PCM is located in the air box, behind the air filter.....you will have to remove some screws to separate the housing....if rodents, ate your wiring on top of the motor, chances are they did the same to the wire harnesses to the PCM.....have seen it many times....

Hey there, thank you for the reply. I just took a look inside the air filter box and it looks like the PCM is in perfect shape. Any other ideas?

Recheck all the wire harnesses on top of the engine, looking for missing insulation.......