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03-25-2013
I have a 01 Grand prix gt 3.8L (not super charged) it is using a lot of gas, I have changed the fuel filter, put new plugs,plug wires,air filter, 02 sensor, and a new exhaust. Still can't figure out why it is doing this,can someone please help me.
Thank you
Sammie
03-25-2013
Which brand plugs?
Ever cleaned the MAF sensor?
What kind of driving do you do? Is it all city or a mixed of highway/city? What are you avg miles per tank?
03-25-2013
Both city and highway,but I noticed that I am getting the same reading for both city and highway which is 16.9 which is odd,cause I was getting 22.1 on the highway and 17.9 in the city before.
03-25-2013
Pop the hood with the car running, and see if you smell fuel. You might have a slight injector leak.
Also, pop the MAF out and clean it with MAF cleaner, could be causing you to run pig rich.
03-25-2013
Popped the hood no gas smell and what is MAF I am a girl trying to fix my car.
03-25-2013
Mass Air Flow sensor. It measures the amount of air entering the engine, and helps the computer add the correct amount of fuel.
Only use MAF cleaner, anything else can destroy it.
03-25-2013
Just cause youre a girl dosent mean you cant fix the issue at hand. Mass air. Flow sensor Google grand Prix 3.8 maf sensor you'll see what it is. And like five finger asked what type of plugs etc...?
03-25-2013
Bosch platinum plugs
03-25-2013
Get rid of those plugs, get some AC Delco Irridiums.
Originally Posted by The Sunfire Guy
03-25-2013
Ok, will try that
Thank you!
Sammie
03-25-2013
Getting rid of those plugs won't do a thing for you.
Do you have any mods on the car?
03-25-2013
What do you mean by mods
03-25-2013
Anything that is not factory....upgraded stuff for better performance. Like headers, better flowing exhaust, cold air intake, etc...
03-25-2013
No, nothing like that
03-25-2013
Is your service engine soon light on? Does the car run smooth when it's idling?
03-26-2013
Are you doing the math to figure out your mileage or are you using the drivers information center?
Originally Posted by W-Body Store
03-26-2013
Better check to see if you have any stored codes. Also note that sometimes things like an oxygen sensor could be working poorly yet not trigger a CEL. What are your driving habits like or did the high fuel consumption just start happening?
03-26-2013
I'm having the same issue with my 99 GT. I am currenty using ALwires and AC Delco rapid fire plugs. My CEL comes on periodically and it says bank 1 system too lean. I'm lost of what that means :/ but its drinking gas like soda pop.
03-26-2013
Byron, you need to search on that code. Search bar is top center of the forum page. Click on the magnifying glass.
03-26-2013
Will do, Bill.
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