lately i have noticed that when i start it up , its a weak start and dips down to like 200 prms and then fluctuates. sometimes it shuts off on me . also when i hammer it , it doesnt pick up like it did.
could my test pipe now be affecting that secondary o2 sensor and maybe killed it?
thats the only thing i can think of . but i thought that sensor doesnt really do anything.
help

 

That sounds like a sensor problem. Have you ever sprayed your engine down while washing it???

 

never, the only cleaning the engine bay gets , when it even gets cleaned at all is just wiping things off with a rag.

 

ttt