LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

With soaring gas prices is a ECU Necessary??

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Old 05-15-14, 01:35 PM
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GAZA4Life
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Originally Posted by jlawr
Best way to save gas is to leave you LS in the garage and drive a scooter. Or: just enjoy the 30mph you get on the highway in the LS
Bro if we had highways down here would have been a blessing. Hills and tons of corners. One main highway 4 lanes. 2 up 2 down. But all in all can't and won't trade the highways for the 365 sunshine and 80 degree weather..
Old 05-15-14, 02:22 PM
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jlawr
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Originally Posted by GAZA4Life
Bro if we had highways down here would have been a blessing. Hills and tons of corners. One main highway 4 lanes. 2 up 2 down. But all in all can't and won't trade the highways for the 365 sunshine and 80 degree weather..
Like I said - you should drive a scooter and enjoy the sunshine and the weather.
Old 05-15-14, 09:21 PM
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GS3Tek
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Don't throw it in the trash.

Open it up and see what's inside (besides resistors and wires).

If not, demand a refund for false advertising.
Old 05-16-14, 10:44 AM
  #19  
NYKnick101
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Originally Posted by sktn77a
Yep, that one certainly was a ripoff. I think we were talking about 2 different things, though. A snake oil component (encased resistor) vs a truly reprogrammed ECU firmware chip.

Neither of which are worth buying!

Yeah agreed but if they make a component that can save tons of money on fuel economy as well as increase power and sell it for $25?!? thats where you know its a rip off. A true ECU/Firmware chip's are out there and sell for hundreds of dollars, not $25

Either way i agree both are not worth buying. If there was something that could do that, im sure lexus would have it in the car stock
Old 05-16-14, 10:53 AM
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Originally Posted by triniexr
I really don't understand... people that use fuel additives and remap ecu's etc thinks that it saves fuel. To me the injectors are still injecting the same amount of fuel in the cylinders.. its all about the way you drive. I also don't believe that super burns less than regular.

Correct me if im wrong someone.
On an LS460 it is likely that premium gasoline will get better mileage than regular. The engine computer retards the timing to protect the engine if it senses pre-ignition. That reduces not only power but effeciency and thus fuel mileage. How much depends on the condition of the car (carbon build up in the head), how you drive (hard acceleration) and where you drive (mountains). The differences are likely small, but you do not get everything you paid for and the additional cost of premium is also small. On an engine set-up to burn regular, premium will not improve mileage.
Steve
Old 05-16-14, 11:35 AM
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triniexr
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Originally Posted by oldcajun
On an LS460 it is likely that premium gasoline will get better mileage than regular. The engine computer retards the timing to protect the engine if it senses pre-ignition. That reduces not only power but effeciency and thus fuel mileage. How much depends on the condition of the car (carbon build up in the head), how you drive (hard acceleration) and where you drive (mountains). The differences are likely small, but you do not get everything you paid for and the additional cost of premium is also small. On an engine set-up to burn regular, premium will not improve mileage.
Steve
Thanks, that's what I thought.
Old 05-16-14, 01:14 PM
  #22  
LexFather
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The Lexus ECU's are pretty much uncrackable at this point....
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