Skip the auto shop - Our mechanics make house calls

Q: Question about acceleration improvement.

asked by on

I am looking to purchase a 2015 toyota corolla le. I read some reviews and noticed that many complaints regard poor acceleration. I was wondering what the most cost effective way to improve the acceleration is. It seems cold air intake is a good start, but I dont know anything about cars so i figured i would ask someone who did. Please provide as many options as you can think of.

My car has 25000 miles.
My car has an automatic transmission.

There are zero options to "improve" the acceleration of the vehicle very simply because if such "options" actually existed Toyota would have already implemented them on the assembly line. That is who wouldn’t want better acceleration?

Toyota selected and tuned the engine to put out maximum power while still meeting Federal emissions requirements. So, the computer that the car is equipped with runs off existing sensor outputs and the setup cannot be modified, and thence "evaluated" excepting a circumstance where you have a dynamometer and test rig as well as emissions testing equipment. Such involves a million dollar, or frankly 10 or 100 million dollar laboratory. Leaving aside physical reality and the existence of Toyota’s already prodigious efforts to tune and optimize the engine in the 2015 Corolla, of immediate practical importance is the fact that no repair facility can advocate engine modifications to a production vehicle that have unknown effects on vehicle emissions.

The Corolla is a good car and if you elect to buy one, be sure to get a comprehensive pre-purchase inspection done by one of our mobile technicians. So that you are fully informed going into the transaction and not later surprised by hidden damage.

Finally, by all of the foregoing I don’t want to discourage you from still "looking" for modifications or even experimenting but the reality is you will literally need a lab to measure the effects. A problem is the companies that sell products such as aftermarket "chips", or other "strategies" do not necessarily have ANY evidence that such modifications are beneficial or that they do not create excess emissions that violate Federal standards.

With regard to any performance improvement option that you do find and/or want to consider, be sure to ask the vendor, or promoter, for the comprehensive test data from an independent testing laboratory that proves the benefit and under what operating "conditions". If there is no data, or they are not willing to give it out, there is no benefit.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Short-term fuel trim swinging plus or minus 10% during driving

Yes, this is normal when you accelerate and decelerate. Your vehicle will add fuel at times, and when you take your foot off the gas, it will subtract. This is normal for any vehicle, even my Toyota does this. Once...

Q: Need to take diesel out of car

If you accidentally added diesel fuel to your gasoline I would recommend using a syphon to remove as much of the diesel fuel as you can, and then filling up the tank completely with the correct type of fuel. If...

Q: Turbo blow off valve

Hello. The "blow-off-valve" or BOV, is a pressure-release valve designed to prevent over-pressurization of the engine, not the turbocharger itself. While hearing some of the sounds a turbo-charged engine makes while running through the gears is a most pleasant experience,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...