Why You Should Upgrade Your Engine Control Unit Software

By Mister Transmission

Your car’s ECU is the brain behind the horsepower that controls everything from the transmission to fuel consumption

Modern automobiles are complex machines.

Arguably, the cars, trucks, and SUVs cruising Canada’s tar plains today should be counted among other remarkable feats of engineering for the simple fact they are computerized marvels inasmuch as they are mechanical wonders. And yet, there is so many things that can go wrong in your car at any time, including a malfunction in the engine control unit (ECU) – aka engine control module (ECM) – that serves as your car’s “brain.”

Like any computer, the operating system (OS) and software installed on it are what gives the computer its instructions. If the ECU’s OS or the software responsible for sending and receiving data from all the sensors throughout your vehicle is not up-to-date, or the module itself fails to operate properly, it can wreak havoc on almost anything in your car, including how your transmission performs.

Electrical System Flaw or Mechanical Malfunction?

Problems with the electrical or computerized systems in your vehicle are easy to detect thanks to the engine light on your dashboard, or because your car won’t start. But they are maddeningly difficult to diagnose. Naturally, if your car’s engine is making strange noises, your immediate assumption is it’s a mechanical problem.

But nowadays, most essential functions in your car are done electronically. For instance, your vehicle (despite the make and model) has an electronic throttle control that long ago replaced the mechanical connection between the accelerator pedal and the throttle. That electrical throttle is, in part, responsible for governing transmission gear and torque changes.

The Benefits of Ensuring Your ECU Runs Smoothly

It’s important to keep your ECU’s software updated. Doing so will improve the responsiveness of your vehicle, and prevent wear and tear on your transmission.

In addition to ensuring your transmission and gearbox are performing as they should, an optimized ECU controls:

  • The timing of your car’s ignition
  • Your engine’s idling speed
  • How much fuel is consumed and how much carbon dioxide is exhausted
  • How much torque your engine produces

Have questions about your car’s ECU and how it’s performing? Talk to a Mister Transmission technician about your ECU software. Find your nearest location.

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Customer Reviews
Good and friendly and reliable...
Albert Wilton
Good and friendly and reliable people and they work hard to get your vehicle doneService: Transmission
Date: July 25, 2021
Website: Google
Thank you, Mister Transmission! After...
Christy McMurray
Thank you, Mister Transmission! After taking my vehicle to the dealership where I bought it, and paying $150 for them to tell me what I already told them was wrong, the Dealer gave me a quote of $6,500 to replace my 9 year old transmission with a factory rebuilt one, because it couldn't be fixed or rebuilt by them. Thankfully I called Mister Transmission and Chris knew exactly what the issue was, how to fix it, and it only cost me $385 for everything and it was fixed in a day. I am so grateful that Chris and Dawn run an honest operation and provide genuinely great service. Thanks again!
Date: July 25, 2021
Website: Google
Cambridge Mister Transmission was awesome....
Sarah MacArthur
Cambridge Mister Transmission was awesome. We ended up having a small issue but they still took the time to show me where on my vehicle the problems were and fully explain the possible issues. They were prompt in getting back to me the following day and I had my vehicle back in no time. Chris and Nick were amazing and the office is so clean and pleasant. Great customer service!
Date: July 24, 2021
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Great service , friendly and...
John Neven
Great service , friendly and very knowledgeable.Excellent work
Date: July 23, 2021
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Mazda 3 AT light came...
Chris Elmquist
Mazda 3 AT light came on one with some bad noises and clunking. Dealer said need a new transmission for only $4400. Took it to this and a quick check they determined it needed new TCM which is very common on the mazdas. They took care of it and even did a bunch of extra work fixing a wiring harness all for the cost of the TCM . cannot say enough about how we were treated by Chris and Dawn. Would recommend them. FIRST CLASS!!!!!
Date: July 23, 2021
Website: Google
Workers are very nice and...
Ely Bolivar
Workers are very nice and explain thing clearly. Also they have an option to finance your repairs.
Date: July 22, 2021
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They assessed the problem quickly,...
Colleen H
They assessed the problem quickly, quoted a good price, provided fast service, in a no-pressure, friendly manner. I've been telling everybodyService: Transmission
Date: July 20, 2021
Website: Google
I took my differentials down...
Kieran Massicotte
I took my differentials down to get rebuilt and Steve was very professional and the total was 200 bucks cheaper than the quoted price and there was a few things during the whole process that didn’t go as planned as I had brought all the bearings parts and some bearings were the wrong ones and I had brought 4.88s to put in end they would not work and before continuing with anything Steve would call and double check to let you know what needs to be done and get the ok from me first before they would continue overall amazing place Steve and the guys were awesome and the work was done perfect and the diffs have never been more smooth highly recommend.
Date: July 20, 2021
Website: Google
Excellent customer service.Service: Transmission
Eduardo Vieira
Excellent customer service.Service: Transmission
Date: July 20, 2021
Website: Google
Thank you Kyle and the...
Roman Danko
Thank you Kyle and the Mr. Transmission team for very professional and friendly customer service and repair. I definitelly recommend their services.Service: Transmission
Date: July 19, 2021
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