Horsepower/ Fuel economy

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papo1964
Posts: 1
Joined: Wed Jun 13, 2012 9:21 pm
Car: 2003 Infinity Q45

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Just purchased a 2003 Q45 there is a slight slag on acceleration. Would like to know if there is a way to eliminate this concern. Would also like to know how to increase horsepower and fuel economy with out breaking wallet. All I have found is G-Force chip. Read good & bad inputs on this product. Advise is very much appreciated.


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Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
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:welcome: to NICO!

The 2002 had updates available to deal with acceleration lag issues - but I think all of those fixes were applied prior to the 2003 model year. I would still check with your dealership to see if there are any updates that are available for your car. They can pull all of the dealer-performed service history for your car with your VIN.

Heath


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