1999 Grand Am SE 4 Cyl Bad Gas mileage

[deathcabforchristina]

Not mechanically inclined, how much does that test cost at a shop?

 

[msmith1956]

I'm not sure what the labor rates would be, but most shops charge a minimum of 1/2 to 1 hour labor to do much of anything. The FPR test wouldn't take but about 10 minutes tops using a hand vacuum pump. The fuel pressure test would take a little longer since they would have to temporarily splice a "T" fitting into the fuel line since your fuel rail has no schrader valve test fitting. I would just call a few shops and ask around.

 

[deathcabforchristina]

The mpg seems to be getting better, when I get gas again, I will see, but I'd bet I'm closer to 20 now.

 

[deathcabforchristina]

Check engine light again!!! I'm assuming its the o2 sensor code that came up 2 weeks ago.

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[msmith1956]

Have the code pulled and let us know what it is.

 

[deathcabforchristina]

It was the down stream o2 sensor. Fixed for $110. This car is draining me and I've only owned it 2 weeks!