Okay so I have a 1994 Buick Park Avenue Ultra (SuperCharged) and I noticed that recently it appears I am using far more gas than I used to, and when I start the car it turns over for a few seconds before it fires up.
Just today I filled the tank (and let it click twice to make sure), and drove maybe 4Miles to my house, at around 30mph with a few stop signs. Normally after I fill up my gauge reads over onto the F(ull) marker, but this time it was already past the first line, so at about 14-15/16th of a tank. I normally get about 20-30 miles before it even hits the first marker!
Another thing is that if I let it idle it sits at just under 1000 rpms, then after a few seconds will go to just over 1000rpms. I have no clue why.
Is there any chance that my addition of a 500W Amp and 1200W Subwoofer could have done something?
I have not checked the filters (air/fuel) or the spark plugs.
I was thinking of bringing it in to get the O2 and Mass Air Flow Sensors checked.
Someone knowledgeable with engines please help!
Just today I filled the tank (and let it click twice to make sure), and drove maybe 4Miles to my house, at around 30mph with a few stop signs. Normally after I fill up my gauge reads over onto the F(ull) marker, but this time it was already past the first line, so at about 14-15/16th of a tank. I normally get about 20-30 miles before it even hits the first marker!
Another thing is that if I let it idle it sits at just under 1000 rpms, then after a few seconds will go to just over 1000rpms. I have no clue why.
Is there any chance that my addition of a 500W Amp and 1200W Subwoofer could have done something?
I have not checked the filters (air/fuel) or the spark plugs.
I was thinking of bringing it in to get the O2 and Mass Air Flow Sensors checked.
Someone knowledgeable with engines please help!