The negative battery terminal is loose. I realized this tonight after driving my car for a while I shut if off and then it didn't start. I looked and the cable was almost off the terminal completly. I was wondering if this could throw a CEL light and also my main question could a loose battery cable be a cause as to why my car has been bogging out a little bit? A couple of days ago my CEL light turned on and it was code 43 which is defective fuel system, so could a loose battery cable be related to that as well? Thanks guys

 

nope the loose battery terminal, did not cause the dreaded code 43.
Consider the code to mean that the engine is running rich. "unburned oxides" was the original term from the factory, but it somehow got lost in translation.
Spark system, clean air filter, valve adjust, lazy O2 sensor?? Have fun

 

O.K, but can a loose battery terminal cause my car to bog out from time to time?

 

check your o2 sensors resitance. make sure thats working because when mine went my car had no accleration under 3k rpms.

It kind of makes sense, just tighten your clamp and see how it is. The only reason i say it might be that is because if its loose enough that your cars running off purely your battery, its gunna bog down a bit.

But what your saying sounds more like an engine problem