Hi, I have a 2002 honda civic si and the check engine light is on and it is putting out a rich code. Due to this the car is a little bit doggy otherwise it runs normal. Any ideas out there on what I could do to fix this?

Thanks Hoss600

 

What is the exact code being thrown? Do you have number or something for us?

 

Code Number is P0174. Thanks

 

That's a lean code. Opposite of "rich".

Quick googling is pointing to o2 sensors being faulty.

 

Might also be caused by an exhaust leak faking out the O2 sensor and ECU.