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05-05-2012, 06:41 AM
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#61
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Registered User
Join Date: Dec 2011
Location: Kutztown, Pennsylvania
Posts: 35
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I have an 04 with a 4.0liter 32's and 3.73 gears I average around 15.5 on back roads and 11 to 12 on the turnpike. Go figure... However, My mileage was droping steadily for awhile. It turned out to be my cats. I think between the type of driving you do and an incorrect speedo, that can make a big difference.
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05-05-2012, 07:31 AM
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#62
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Registered User
Join Date: Jun 2009
Location: Bloomington, Illinois
Posts: 248
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Quote:
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Originally Posted by 08_Sahara16
There's an app for showing codes? I must know of this. What's it called and how do you plug it into your PCM
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Oh, it does a lot more than read and clear codes! Once you have it you won't know what you did without it. It's called "Torque". You need to buy a Bluetooth OBD II scan tool. They run $20-$40 on eBay and the app was $7 when I bought it. For under $50 you can't beat it.
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05-05-2012, 09:11 AM
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#63
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Registered User
Join Date: Nov 2005
Location: Palm Harbor, Fl.
Posts: 452
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I just tried the "turn the key on/off 3 times" a minute ago and it showed po 432, an 1494 in the odometer.
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05-05-2012, 09:46 AM
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#64
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Web Wheeler
Join Date: Sep 2011
Location: Tulsa, OK
Posts: 3,180
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P0432 is a catalyst code...I think triggered by the downstream bank 2 sensor.
Not entirely sure about the other code but if I had to guess it might be the code for that same o2 sensor.
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05-05-2012, 03:31 PM
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#65
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AFSOC Retired
Join Date: Aug 2005
Location: Colorado
Posts: 11,744
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Quote:
Originally Posted by Necromancer_tat
A modification that is done correctly will work on any internal combustion engine. The factory intake and exhaust is not very restrictive though, so normal bolt on parts don't show very much improvement. A person that really knows what they are doing could improve on it though, but the average bling bling cold air intake isn't going to do anything besides suck up a bunch of water off road...
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And allow more dirt into the engine, a more free flowing exhaust will cause the loss of low rpm torque...
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05-05-2012, 03:39 PM
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#66
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Mall Crawler
Join Date: Jul 2011
Location: Norfolk, Virginia
Posts: 3,994
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Quote:
Originally Posted by Knuckelhead
And allow more dirt into the engine, a more free flowing exhaust will cause the loss of low rpm torque...
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An engine can be tuned to what ever power band you want it to run, as long as it's capable of staying together. If you wanted to focus only on the lower rpm torque, then you could still build a better header than what came from the factory.
__________________
When someone tries to tell you that nothing is impossible, ask them to dribble a football!
Quote:
Originally Posted by misterpookie
my best recommendation is keeping a dictionary in the restroom.
word to the wise: dictionary pages are generally thin and not quilted. :nono:
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Quote:
Originally Posted by 1999TJRED85000
Are you on crack?
I think you're a little off. The shell on a turtle is thicker by a factor of 1.6783 while compared to the speed of a Puma, when chasing a rabbit. Therefore, if you hit a nail with a 4 lb. hammer, the thickness of the wood needs to be 4, and your grip should be on your lower regions.
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Project "Wrong Way" Jeep build ----> http://www.jeepforum.com/forum/f22/p...g-way-1293197/
Project "Bassakwards" Jeep build----> http://www.jeepforum.com/forum/f22/b...build-1483076/
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05-05-2012, 05:24 PM
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#67
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AFSOC Retired
Join Date: Aug 2005
Location: Colorado
Posts: 11,744
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Quote:
Originally Posted by Necromancer_tat
An engine can be tuned to what ever power band you want it to run, as long as it's capable of staying together. If you wanted to focus only on the lower rpm torque, then you could still build a better header than what came from the factory.
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Can you show a better one than the 2000+ OEM one for the 4.0L?...
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05-05-2012, 06:20 PM
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#68
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Mall Crawler
Join Date: Jul 2011
Location: Norfolk, Virginia
Posts: 3,994
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Quote:
Originally Posted by Knuckelhead
Can you show a better one than the 2000+ OEM one for the 4.0L?...
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Yeah, a pile of tubing, a mandrel bender, someone who knows how to tune an engine, and a good welder.
__________________
When someone tries to tell you that nothing is impossible, ask them to dribble a football!
Quote:
Originally Posted by misterpookie
my best recommendation is keeping a dictionary in the restroom.
word to the wise: dictionary pages are generally thin and not quilted. :nono:
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Quote:
Originally Posted by 1999TJRED85000
Are you on crack?
I think you're a little off. The shell on a turtle is thicker by a factor of 1.6783 while compared to the speed of a Puma, when chasing a rabbit. Therefore, if you hit a nail with a 4 lb. hammer, the thickness of the wood needs to be 4, and your grip should be on your lower regions.
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Project "Wrong Way" Jeep build ----> http://www.jeepforum.com/forum/f22/p...g-way-1293197/
Project "Bassakwards" Jeep build----> http://www.jeepforum.com/forum/f22/b...build-1483076/
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05-05-2012, 06:24 PM
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#69
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AFSOC Retired
Join Date: Aug 2005
Location: Colorado
Posts: 11,744
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Quote:
Originally Posted by Necromancer_tat
Yeah, a pile of tubing, a mandrel bender, someone who knows how to tune an engine, and a good welder.
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Again, you don't have an answer...
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05-05-2012, 07:35 PM
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#70
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Mall Crawler
Join Date: Jul 2011
Location: Norfolk, Virginia
Posts: 3,994
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Quote:
Originally Posted by Knuckelhead
Again, you don't have an answer...
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I answered your straw man arguement as best as I could given the limitations you imposed as to what answers you felt would be acceptable.
I never said I was talking about bolt on parts.
You're a mechanic from what you've said in prior conversations, so I'm supprised you are even argueing about what I posted.
PM me if you wish to continue this conversation so we don't hijack this thread any worse. 
__________________
When someone tries to tell you that nothing is impossible, ask them to dribble a football!
Quote:
Originally Posted by misterpookie
my best recommendation is keeping a dictionary in the restroom.
word to the wise: dictionary pages are generally thin and not quilted. :nono:
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Quote:
Originally Posted by 1999TJRED85000
Are you on crack?
I think you're a little off. The shell on a turtle is thicker by a factor of 1.6783 while compared to the speed of a Puma, when chasing a rabbit. Therefore, if you hit a nail with a 4 lb. hammer, the thickness of the wood needs to be 4, and your grip should be on your lower regions.
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Project "Wrong Way" Jeep build ----> http://www.jeepforum.com/forum/f22/p...g-way-1293197/
Project "Bassakwards" Jeep build----> http://www.jeepforum.com/forum/f22/b...build-1483076/
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05-05-2012, 07:58 PM
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#71
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AFSOC Retired
Join Date: Aug 2005
Location: Colorado
Posts: 11,744
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Quote:
Originally Posted by Necromancer_tat
I answered your straw man arguement as best as I could given the limitations you imposed as to what answers you felt would be acceptable.
I never said I was talking about bolt on parts.
You're a mechanic from what you've said in prior conversations, so I'm supprised you are even argueing about what I posted.
PM me if you wish to continue this conversation so we don't hijack this thread any worse. |
No thanks...
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05-09-2012, 08:27 PM
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#72
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Registered User
Join Date: Dec 2011
Posts: 609
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p0432 is 1/2 catalytic converter efficiency - catalytic converter at 2/1 efficiency below required level.
Here's a link to all the common codes: http://www.stu-offroad.com/engine/scancodes.htm
__________________
F U
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07-30-2012, 03:35 PM
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#73
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Registered User
Join Date: Jun 2010
Location: Tampa, FL
Posts: 56
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Quote:
Originally Posted by 08_Sahara16
About a month ago I bought a 2004 Jeep Rubicon and I've been dying to know what kind of mileage it's getting. After filling it up twice I've gotten my result. 11 mpg
I had a 2008 Rubicon before this and it was getting 12 mpg with automatic trans, 35" tires and stock gearing in it. I'm wondering if 11mpg is right for a 2004 Rubicon with a 4.11 ratio, 31" tires, 4.0L I6 engine, D44 front and rear. I drive it like I'm trying to save gas too, not gunning it everywhere etc...
I'm going to do a few things to it to hopefully bring my mpg up a bit like STP engine cleaner, CAI, programmer etc.
My question is, am I getting the correct mpg for what I've got? What can I do to possibly bring up my mpg's?
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I have a 99 6cyl Automatic, when I was running 35" with 3.07 (wrong gears) gears and I got 14 mpg went down to 33" tires and get worse mpg. odd stuff.
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07-30-2012, 06:23 PM
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#74
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Registered User
Join Date: Jan 2011
Location: Carolina Beach, NC
Posts: 49
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My last few tanks averaged 13.4 mpg. NO hwy driving mostly to and from work 30-50 mph. 2006 lj rubicon stock with low air pressure in tires. 35k on the odometer.
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07-30-2012, 08:17 PM
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#75
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Registered User
Join Date: Nov 2008
Location: Colorado
Posts: 345
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Mine is a 2005 Rubicon with 31's - stock gears and auto trans. I have been tracking my mileage for over a year now and have noticed a pattern. I typically fill up at my local Sam's club. I've been averaging just over 15 mpg. Recently I filled up at another station and got just over 13 mpg. Back to Sam's club back to 15 mpg, and again to the second station and only 13 mpg. So, I think that the two stations are measuring the amount of pumped gas differently. What I don't know is if Sam's is pumping more than the pump is reading or if the second station is pumping less. I suspect the later.
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>
Horrible mpg in a new-to-me Jeep
