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Old 02-18-2004, 11:27 AM   #1 (permalink)
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Default PCM Update

I am getting ready to call for my appointment to get my recall work done and get the spoiler gasket replaced. Should i ask for a PCM update as well? Does it make that big of a difference?

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Old 02-18-2004, 11:33 AM   #2 (permalink)
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Default Reading Topic: PCM Update

If you had an automatic, it makes a world of difference. For a 5-spd like yours, you probably wouldn't notice much of a difference if at all. However, it certainly can't hurt.
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Old 02-18-2004, 12:12 PM   #3 (permalink)
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Default Replying to Topic 'PCM Update'

Quote:
Originally posted by jstand6 * * * * * * * *
However, it certainly can't hurt.
You have faith in the regression testing capabilities of the Mazda PCM Q/A staff.

There is a rule of thumb when it comes to flashing firmware.
"If it aint broke, don't fix it."

In other words, it's never a good idea to do it "for the hell of it".

Now, if you are experiencing an issue that is addressed by a certain firmware version, then let her fly.

Personally, my 6 was built in March 03, and has no firmware upgrades and I want to keep it that way until they release a +20 HP premium fuel only upgrade.
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Old 02-18-2004, 12:17 PM   #4 (permalink)
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Default Reading Topic: PCM Update

Yah, I have done no updates at all and have the same mentality. I wish that timing adjust were a reality Kristoff, that would be great!

In the same breath, my fiancee has a 6i ATX like Jstand, what exactly do you mean by a "world of difference"? I wonder if I shouldn't have her get that done when she is in for the next oil change.
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Old 02-18-2004, 12:54 PM   #5 (permalink)
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Default Reading Topic: PCM Update

for the ATX there was a huge improvement on shifting when i got the upgrade back in September. my car was built in 02 so maybe newer cars would have less effect. i'm still having some hard shifting, as most people at the last Socal meeting, from 1 to 2. hoping that the several updates since september will cover this when i head in next month.
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Old 02-18-2004, 01:20 PM   #6 (permalink)
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Default Reading Topic: PCM Update

I had the latest update a couple of weeks ago. It cured my engine surging and also drastically improved the shifting. The tranny now is more willing to allow higher rpms before upshifting with less throttle input. Before this, it would upshift as soon as possible and you would be in 4th gear at 25mpg unless you really had your foot into it. Downshifts come quicker and with less throttle input as well. Before, the engine constantly lugged and it would be very reluctant to downshift unless you really stabbed the throttle. For the automatics, the latest update makes it feel like a real car... It also cured some of the rough shifting, but that 1-2 upshift is still pretty harsh at low rpm.
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Old 02-18-2004, 01:36 PM   #7 (permalink)
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Default Replying to Topic 'PCM Update'

I had it done about 5 days ago. it definately helped w/ smoother shifting. but it did not help w/ the bucking or kick in the pants effect with the 5 speed at. i was so pissed when that happen again yestrday i thought it was gone w/ that PCM update i did. anyone know what cause that bucking effect? it is so horrible it only happens once in a while seems mostly on stops and go at lights or slowing down then suddenly speeding back up. dam thing happened twice w/ people in the car everyone was like what the hell was that! so embarrassing if i could get rid of the bucking i would be a happy person.
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Old 02-18-2004, 02:11 PM   #8 (permalink)
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Default Reading Topic: PCM Update

The same thing happens with the 4-spd auto. From what I can tell, it is the tranny downshifting to 1st before the car has come to a stop, resulting in a slight jerk followed by sudden engine braking. It is quite annoying and it is the only car I have experienced this with. For me, it only happens when braking slowly to a stop. It doesn't happen if you come to a quick stop. The PCM update didn't take care of this for me either.
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Old 02-18-2004, 03:50 PM   #9 (permalink)
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Default Replying to Topic 'PCM Update'

I get that too i have 6s. But mine does the bucking when accelerating. gets confused then jerks backward then foward then everything goes back to normal and it goes. almost feels like someone hit me from behind. so freaking annoying never had that happen in any of my cars. if it wasn't for the fact that i know other people are having this same prob i would be even more worried. i just hope it not hurting the car or transmission in the long run because it sure feels like s--- when it happens. since the PCM update it not as harsh but i was hopeing it would be gone Oh well. i just pray when i have people in the car it doesn't do it. so i drive extra careful since i never know when it will happen and can't get the car to reproduce it. At least this way i don't have to hear "What the hell was that? this is a new car it shouldn't do that." that pisses me off just as much LOL. I love this car but i can't take the bucking even if it happens only sometimes. I been so forgiving w/ my squeaky brakes, sometime moaning steering, and slight staining but the bucking really annoys me. has anyone out there found a fix?
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Old 02-18-2004, 10:41 PM   #10 (permalink)
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Default Replying to Topic 'PCM Update'

I have a 6i Sport AT that was built in '03. It's at the dealer right now for the fuel odor and the door staining recalls. Should be finished in the morning sometime. I wonder if I should call and ask for the upgrade. I have been noticing hard shift and other erratic "annoyances" like bucking from first to reverse and the like.
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