Mazda electronics?

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T WRX
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Mazda electronics?

Postby T WRX » Wed Mar 09, 2016 10:46 pm

Hey, guys -

A friend of mine has recently had some trouble with his car (Mazda 2) and is looking for suggestions. Here's what he says:

"My Mazda 2 has been acting up several times over the previous week. On the intersate, traveling at a modest 75mph, it has acted like it wasn't receiving any throttle input and would coast for several seconds before pressing repeatedly on the accelerator resumes speed. Took it in to Farr automotive and they found a couple codes, one being Code 2299. Their recommendation is to take it to Billings for Firmware Update or Recoding. Do you know of any Auto Repair Shop in the area that could handle that sort of work?"

This sounds more electronic than mechanical, and may fall squarely into the "go to a dealer" category, but I thought I'd toss this out here in case there are any Mazda enthusiasts with some suggestions.

Thanks!

MH
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Re: Mazda electronics?

Postby DaveMk1 » Thu Mar 10, 2016 7:16 am

I'd call Autoworks, Autostop and Straightaway and see if any can help. I'll bet it will require a visit to the dealer but maybe they'll get lucky.

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Re: Mazda electronics?

Postby rkaiser » Thu Mar 10, 2016 3:26 pm

Throttle position sensor? A little search shows that is something from the brakes and throttle being used simultaneously or close to it(like left foot braking).


Not much help but this is what is says:

Definition of Diagnostic Trouble Code P2299

Category:
Powertrain
Definition:
Brake Pedal Position/Accelerator Pedal Position Incompatible
Note: This definition of P2299 is applied to all manufacturers

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Alex
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Re: Mazda electronics?

Postby Alex » Fri Mar 11, 2016 7:11 am

I would be very surprised if it needed firmware work. ECU's don't fail all that often, and when they do, something electrical goes wrong and you fix it with a soldering iron, not by flashing the firmware. I'm with Russ, sounds like a sensor issue. Throttle position, or maybe there is a switch on the brake pedal that is incorrectly telling the engine the brakes are being applied.
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Re: Mazda electronics?

Postby WyMCoupe » Mon Mar 21, 2016 1:41 pm

Alex wrote:I would be very surprised if it needed firmware work.


Agree. Unless he's using an aftermarket tuned or modded ecu a firmware update won't do anything and he would most likely get a recall notice in the off chance the stock ECU required a firmware update. I'm with russ as well on the failing TPS/BPS.

A side note, a friend was having a similar issue with his BMW 535i and it turned out to be a failing fuel pump pressure sensor.
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