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Jun 19, 2009 | 02:22 PM

nik1703

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From: Redondo Beach, CA

Mpg

Hey guys,

Just replaced my O2's on my 93' fire birdy. Being a 93' - it has no MAF.

Anyways, i replaced them because it seemed to be running a bit on the rich side - and my gas milage was TERRIBLE. Now that i've replaced them, I've been averaging about 11MPG city. Is this normal? should i get more? (yes, i have a heavy foot. But why drive this car if you don't?)

Jun 19, 2009 | 02:25 PM

marc97taws6

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From: DSM

Thats WAY off for a 6 speed... I'm running through a 4spd auto with 3.73's and 3600 stall (terrible for gas mileage) and I'm still managing 15 in the city with a HEAVY foot

Jun 19, 2009 | 02:36 PM

nik1703

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From: Redondo Beach, CA

Quote:

Originally Posted by marc97taws6

Thats WAY off for a 6 speed... I'm running through a 4spd auto with 3.73's and 3600 stall (terrible for gas mileage) and I'm still managing 15 in the city with a HEAVY foot

Well W-T-F then, why is my mpg so shitty? lol

maybe my foots just really heavy.

Jun 19, 2009 | 03:45 PM

litch2004

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From: Austin

my 93 gets 17 in the city through a A4 and ss3600. Well it did before i started the cam swap

Jun 19, 2009 | 04:08 PM

ss.slp.ls1

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From: Orange County, CA

Find out where your A/F ratio is at. Maybe you need a tune.

Jun 19, 2009 | 04:18 PM

nik1703

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Quote:

Originally Posted by ss.slp.ls1

Find out where your A/F ratio is at. Maybe you need a tune.

How do i do that?

I have a tune from the Previous owner.

Jun 19, 2009 | 05:15 PM

ss.slp.ls1

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From: Orange County, CA

Quote:

Originally Posted by nik1703

How do i do that?

I have a tune from the Previous owner.

Find a shop to do a dyno pull and chart your A/F ratio. Should only be like 50 bucks if you go on a dyno day or something, and you can find out where you stand.

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Jun 19, 2009 | 07:27 PM

Hawk465

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From: Lindale, TX

I don't know about city, but I just made a 240 mile round trip running between 85-115 the whole way and got 17.77 mpg.

Jun 19, 2009 | 09:10 PM

#10

sdotlog

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shiet... i think mines took a nose dive.. lol

Jun 19, 2009 | 09:15 PM

#11

R.E.double.D.

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From: ARLINGTON TEXAS

yeah i'd say you need a tune

Jun 20, 2009 | 09:50 AM

#12

yonerhottlt1

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From: Sacramento Ca

Yea that's lower than average. Mines averaged 24 mpg even tho I was on the freeway most of the time but my **** still gets way better than 11 mpg in the city too. You need to check your tune-up items(opti, plugs, wires, fuel pump, etc) because I think you're gas mileage is lower than average.

Jun 20, 2009 | 09:54 AM

#13

speed_demon24

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From: Ocala, FL

The old 02's could have thrown the trims way off. Try resetting the computer before you spend any $$.

Jun 20, 2009 | 11:02 AM

#14

TRANSAM/FORMULA

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From: central florida

my car used to be auto so i think my gears in the back are not the greatest but my mpg on the highway (i kid you not) 30+ in the city is about 19. im sure my 1/4 mile time will improve a lot once i get my 4.10 in there!!