Bad Gas Milage

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Mar 18, 2003 | 10:09 PM

#11

j9fd3s

Senior Member

Joined: May 2002

Posts: 22,465

From: California

Quote:

Originally Posted by Geoffman72' date='Mar 18 2003, 07:19 PM

Mine gets great mileage considering it runs rich enough to toss a flame out every time it goes over 4k. I get 23mpg highway, and at worst 14.5 mpg if I'm taking it to redline off every 9/10 lights.

thats the key to mileage, right there. the o2 sensor only works below 3800rpms and 1 psi of boost, if you exceed either one of those it will go full rich

mike

Mar 18, 2003 | 10:15 PM

#12

RX7Aggie

Thread Starter

Senior Member

Joined: Apr 2002

Posts: 870

From: NASA/JSC - Clear Lake, TX

that's the same for me, i get 17 mpg on the road from here to san antonio, and 13 here in town (yeah, i usually shift at 4K at the earliest and everytime i drive it i push it to 7k at least once). Still, this last tank has been terrible, and should my exaust smell this bad?

Mar 18, 2003 | 10:21 PM

#13

Geoffman72

Senior Member

Joined: Nov 2001

Posts: 1,234

From: Rochester, NY

I didnt know that Mike. God I'm ready to ditch this factory **** and go aftermarket EMS.

Mar 18, 2003 | 11:27 PM

#14

rmaiersg

Senior Member

Joined: Aug 2002

Posts: 811

From: One hour north of chicago (Mundelein to be exact)

The juice man is hilarious. He's got some crazy eye brows, lol.

Mar 19, 2003 | 01:57 AM

#15

pengaru

Senior Member

Joined: Apr 2002

Posts: 2,930

From: IL

with no smog equipment any fc will stink at idle.

regarding the poor mileage, your car is probably just running rich... you need to check everything but they all run rich with the stock engine management. might be time to check out an s-afc or go standalone.