Poor MPG

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
Infinit35
Posts: 10
Joined: Wed Feb 01, 2012 4:34 am
Car: 2005 G35X Sedan (Auto)
Location: Kansas

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Replaced my cam sensors and now the cars mpg dropped. ??????????? 160miles on half a tank??????? I also curb checked both front and rear wheels on the passenger side this morning, now the rear passenger wheel is toed in. At work right now so can't crawl under to look at damage. Anyone have an idea how bad the damage is from discription????? Cost of repair??????????


joe603
Posts: 8200
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

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Try doing an ECU reset for the MPG. As for the suspension, It depends on if you broke anything. Have someone take a look.

Infinit35
Posts: 10
Joined: Wed Feb 01, 2012 4:34 am
Car: 2005 G35X Sedan (Auto)
Location: Kansas

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Can i reset the ecu myself and if so, how do i do that? I used the hand held cold puller at the local advance auto parts to clear the cam sensor code. As for my suspension, I'm gonna look at it tonight. Hopefully, something inexpensive is bent. Crossing my fingers for a cheap diy.

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audtatious
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Car: 2017 Q60 Red Sport. Gone: 2014 Q50s, 2008 G37s coupe, 2007 G35s Sedan, 2002 Maxima SE, 2000 Villager Estate (Quest), 1998 Quest, 1996 Sentra GXE
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seymore4
Posts: 276
Joined: Tue Jan 31, 2012 12:57 pm
Car: 2012 M56
Professional UPREV tuner

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get an alignment... lol

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telcoman
Posts: 5762
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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Infinit35 wrote:Replaced my cam sensors and now the cars mpg dropped. ??????????? 160miles on half a tank??????? I also curb checked both front and rear wheels on the passenger side this morning, now the rear passenger wheel is toed in. At work right now so can't crawl under to look at damage. Anyone have an idea how bad the damage is from discription????? Cost of repair??????????
Your problem may be your fuel?

http://en.wikipedia.org/wiki/Ethanol_fuel


"Ethanol-based engines
Ethanol is most commonly used to power automobiles, though it may be used to power other vehicles, such as farm tractors, boats and airplanes. Ethanol (E100) consumption in an engine is approximately 51% higher than for gasoline since the energy per unit volume of ethanol is 34% lower than for gasoline.[25][26] The higher compression ratios in an ethanol-only engine allow for increased power output and better fuel economy than could be obtained with lower compression ratios.[27][28] In general, ethanol-only engines are tuned to give slightly better power and torque output than gasoline-powered engines. In flexible fuel vehicles, the lower compression ratio requires tunings that give the same output when using either gasoline or hydrated ethanol. For maximum use of ethanol's benefits, a much higher compression ratio should be used.[29] Current high compression neat ethanol engine designs are approximately 20 to 30% less fuel efficient than their gasoline-only counterparts.[30]"

Telcoman


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