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Old 12-17-2017, 01:50 PM   #1
badAdjective
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Member#: 471721
Join Date: Jul 2017
Default ECU Reset for Rough Shifts, Struggling to Find Gear

2015 Impreza Sport Premium no mods.

My car is at the dealer getting some warranty repairs and they gave me a loaner Impreza (2018) which, correct me if I'm wrong, has pretty much the same engine and transmission as my 2015. When driving the loaner, the performance is spectacular compared to mine. Much better acceleration, RPMs much more responsive and the car just feels like it does what I want it to do. By comparison mine is struggling to find a gear, has rough shifts, etc. Passing on the highway has become dangerous, as hitting the gas creates a several second delay before the car decides to upshift and give me some acceleration. i.e. suddenly lurching forward after a long, uncomfortable delay.

Will pulling the ECU fuses in the engine and passenger compartments (thus resetting, correct me if I'm wrong) get my car back to its "default" performance? The loaner has about 800 miles on it so is very new, mine has 25,000.
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Old 12-18-2017, 08:24 AM   #2
Elbert Bass
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Join Date: May 2011
Chapter/Region: South East
Location: Down yonder.
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No a 2018 Impreza is nothing like your 2015 Impreza. Chassis is a different chassis (since 2017). Also since 2017: the engine block was redesigned, has direct injection and more HP (DINA), transmission has different programming. The only thing in common is name, engine displacement, and the same series CVT.
You will need to buy a 2017 or later Impreza to get that performance.
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Old 12-18-2017, 10:01 AM   #3
badAdjective
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Quote:
Originally Posted by Elbert Bass View Post
No a 2018 Impreza is nothing like your 2015 Impreza. Chassis is a different chassis (since 2017). Also since 2017: the engine block was redesigned, has direct injection and more HP (DINA), transmission has different programming. The only thing in common is name, engine displacement, and the same series CVT.
You will need to buy a 2017 or later Impreza to get that performance.
I see, thanks for the info.
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