This is topic Poor gas mileage!?! in forum Tech Talk at Northern California Ford Owners  .


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Posted by SikWiditMke (Member # 9699) on :
 
I don't understand, my car is basically stock minus a e-cam eddy intake,Mac cold air, shortys, and 3:73 gears.. Timing is set at 13. And tune up was recently done with new plugs, wires, cap and rotor, fuel filter, and cleaning of IAC and thottle body, and adjustment of tps sensor with a base idle reset. Previous owner has blocked off EGR coolant port.

And the only issue the car has is cold starts every morning. It's hunts for idle or sometimes stall until warmed up. I don't drive ignorant on the streets, just crusing. My drive consist of highway and streets. And I get about 200 to a full tank! Its killing me in the wallet. It has a "superchip" previous owner has installed and you guys have said to take it out!? Is there a process of doing this?
 

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Posted by 90_STANG015 (Member # 8990) on :
 
mine is completely stock down to the air box. 5 speed with borla mufflers.... i drive streets and highways an i get about 200 to a tank. how do you dirve you car?fast, slow?
 

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Posted by SikWiditMke (Member # 9699) on :
 
Driving it very considerate. On the streets I shift at 2500 getting it thru the gears always going the speed limit and on highway I'll always be driving at 65mph..
 

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Posted by 66_5.0 (Member # 9974) on :
 
Mine gets like 150 to a tank..
All about ur driving
 

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Posted by SikWiditMke (Member # 9699) on :
 
I guess this is something I'm gonna have to live with... Just one of those things in owning a muscle car!!
 

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Posted by 89 306 (Member # 9042) on :
 
Wow that's some poor gas milage. I got a built 306 h/c/i nd I get 200 to a full tank som times a lil more wen I driv normally
 

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Posted by SikWiditMke (Member # 9699) on :
 
Dammit I knew something was wrong lol... Maybe I should ditch the stupid superchip on the ECM .. Then redo everything as in timing an idle stuff... Or should I take it aomewhere to get looked at?
 

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Posted by 1HaTCheD5LiTEr (Member # 8269) on :
 
To me personally, I dont think there is anything wrong. When I used to have my hatch that had a 306 and an E cam, I used to get about 200 miles to the tank on mixed street and highway driving, 150 just on city driving.

If I were you, I'd pull some spark plugs and see how they look. If the prongs look black, that means you're running rich, white means lean and brown means you have a pretty good air/fuel mixture.
 

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Posted by SikWiditMke (Member # 9699) on :
 
To me personally, I dont think there is anything wrong. When I used to have my hatch that had a 306 and an E cam, I used to get about 200 miles to the tank on mixed street and highway driving, 150 just on city driving.

If I were you, I'd pull some spark plugs and see how they look. If the prongs look black, that means you're running rich, white means lean and brown means you have a pretty good air/fuel mixture.

First thing I'm gonna do tomorrow is look at the plugs an then we shall go from there!!
 

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Posted by 1HaTCheD5LiTEr (Member # 8269) on :
 
Alright...hope everything goes well!
 

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Posted by Roman (Member # 9945) on :
 
im lucky to get 160 170 before filling up.
 

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Posted by SikWiditMke (Member # 9699) on :
 
Would exhaust leak cause bad gas mileage? Just left work and noticed I have a ticking sound on acceleration.. Same ticking sound I had a month ago but worst!?!
 

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Posted by 5.7L EATER (Member # 9451) on :
 
If the exhaust leak is before the o2 sensor then yes
 

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Posted by SikWiditMke (Member # 9699) on :
 
Then that shit must be the culprit... The collectors don't have gaskets right? Just needs a good tightening hopefully
 

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Posted by JohnB (Member # 969) on :
 

quote:

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Originally posted by SikWiditMke:
The collectors don't have gaskets right?

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