My dad owns a 1995 Bonneville SSE and he has been complaining about very poor fuel economy. The car does not have a CEL or any obvious signs that something is wrong.
My little brother that also drives the car says there is a strong gas smell when you drive the car...kind of fills the cabin...but there is no physical leak...
I thought maybe the cats might be clogged, but the car accelerates fine...not as if the exhaust was blocked.
I have no clue whats wrong with it. I thought maybe O2 sensors, MAF/MAP sensor, or fuel pressure regulator...any other suggestions?
I'd like to figure this out for my dad; thanks for the help.