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-   -   Getting Horrible Gas Mileage (http://www.jeepgarage.org/f203/getting-horrible-gas-mileage-5634.html)

Sodelcustoms 01-16-2010 11:18 AM

Getting Horrible Gas Mileage
 
I just recently built a cold air intake for my wj and ever since I put it on I can watch the gas gauge go further and further down laughing in my face at every fill up. For some reason I cannot tell why, it has been like this since my first set up. Now to explain that I've had 2 cai set ups. 1st one I did not like the way I built it, took it off put stock box back on. Now ever since then mialage has been much lower even with the stock air box. Put the new one on and now it's even worse. I got gas yesterday, drove extra easy on the highway and it still looks like someone came in and raped my tank. So I don't know whats up with it. Any input would be awesome.

Scottina06 01-16-2010 11:58 AM

Re: Getting Horrible Gas Mileage
 
reset your pcm by removing the negative cable. I know on the wk's you just need to press the brake pedal to release the stored energy......probably the same wiht your WJ

Sodelcustoms 01-16-2010 11:59 AM

Re: Getting Horrible Gas Mileage
 
Thanks for the reply will try that and post results.

Scottina06 01-16-2010 12:28 PM

Re: Getting Horrible Gas Mileage
 
yeah...itll reset it back to the factory config and then relearn from there.

baronvonhavok 01-16-2010 07:52 PM

Re: Getting Horrible Gas Mileage
 
The same exact thing happened when I put in my K&N intake. All you need to do is reset the PCM. Do exactly as Scott said and you'll be fine.

Milous 01-16-2010 07:56 PM

Re: Getting Horrible Gas Mileage
 
I'm getting horrible mileage as well in my WK and I just can't figure out why...

http://www.wkjeeps.com/srt8/2009_wk_srt8_006m.jpg

Sodelcustoms 01-16-2010 11:25 PM

Re: Getting Horrible Gas Mileage
 
Reset the pcm back at 16.8 but still burnt a half tank of gas since yesterday and barley went anywhere

Scottina06 01-16-2010 11:46 PM

Re: Getting Horrible Gas Mileage
 
maybe your foot has gotten heavier? Seriously....intake, exhaust....the WJ is sounding good when you floor it? Maybe thats the problem?

Chaoul1 01-17-2010 12:31 AM

Re: Getting Horrible Gas Mileage
 
No leaks? Check the Fuel Gauge. It doesn't seem right. Reset your ODO and then fill up next time and see how many miles you have gone.

Sodelcustoms 01-17-2010 09:35 AM

Re: Getting Horrible Gas Mileage
 
Quote:

Originally Posted by Scottina06 (Post 133558)
maybe your foot has gotten heavier? Seriously....intake, exhaust....the WJ is sounding good when you floor it? Maybe thats the problem?

Thought of that it I had been but filled half way up drove conservativly and still 1 day-half tank I fugured it to be a little under 100 miles or so. Im getting an averae of maybe 14. Still a little low if you ask me. I never remember it eating that much. Computer average says 16.8

Scottina06 01-17-2010 02:13 PM

Re: Getting Horrible Gas Mileage
 
man.....I would take 14 or 16.8 anyday of the week.....LOL

Sodelcustoms 01-19-2010 09:45 PM

Re: Getting Horrible Gas Mileage
 
lol yeah but I only have a 6 banger. Something is not right though. Dumped almost a half tank of gas in 90 miles.


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