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"m" flash revisited

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Old 05-17-2004, 02:27 PM
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I had my M flash 2 weeks ago. The anti bucking feature is great, and I have to say teh car is much smoother- and even easier to rev to redline now. I feel it has gotten a bit better than the first few days I had the flash, BUT.... I feel less power at about 4000 rpm than I used to have with the K flash.

I think now I run constantly at a higher rpm to compmensate. And that negates the better MPG (if any on my car- no tests yet)

I am about the put my CZ1.1 back in and see if it works. There was a problem with my car in that the MAF volateg was higher than normal, and the CZ was causing the car to go into safe mode.
Old 05-17-2004, 03:18 PM
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Originally posted by d0va
I GET REAL BAD MILEAGE. AROUND 230 MILE PER TANK. (12-14MPG) CITY DRIVING.
How do you figure your mileage? If you get 230 miles per tank, you're likely getting better than 12-14 mpg (I assume you're filling up after your low fuel light goes on. I rarely get over 220, and according to my calculations, on average I'm getting a little better than 16 mpg.
Old 05-17-2004, 11:41 PM
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So if I buy a new 8 in a couple of weeks - will it already have the "M" flash on the ECU?

I just got my 8 last Thursday. Absolutely love it.

The dealer preferred to have the flash done as warranty service after sale, not before.

I don't know if this is common, standard, or my dealer being quirky, but I plan on taking it in in a couple of months anyway for routine service, etc. I'll have it done then.

By the way...I can even express how glad I am I bought this car.
Old 05-18-2004, 10:47 AM
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Originally posted by Gord96BRG


Even if you don't request the M flash - at your next oil change, or recall appointment (airbag wiring or trans damper), they'll say "By the way, your car was due for a PCM flash, so we did it for you". Resistance is futile - you WILL be assimilated!

(I had the M flash done a few weeks ago - no big deal.)

Regards,
Gordon
Well Maybe, but IME the service dealer's don't read the TSB's, I had to beg for "L" and had my first oil change and warrentee work well after M was available and they never did it.
Old 05-18-2004, 11:28 AM
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That experience of lean to rich and many trials leads me to believe that the 8 was leaned out for better performance and economy and is confirmed by many on this board.
I haven't got the M flash yet and I'm a bit hesitant to do so.My understanding of leaner mixtures is that along with better performance it also creates higher exhaust temps and reduces engine longevity.
Old 05-20-2004, 09:58 PM
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Originally posted by shoptb
So if I buy a new 8 in a couple of weeks - will it already have the "M" flash on the ECU?
I just picked my 8 up last week, and it has the L Flash - according to the label on the ECU. I checked it out today. My car was built in Feb. '04 - just before they started doing the M Flash. Chances are it will depend on when your car was built. I believe it will come with whatever it was built with - just check the build date on the door - M was started in March '04. The re-flash will have to be done later on a service visit. I plan to do mine with it's first oil change. 3000 miles should give me a chance to see if there is much difference between the L & M.
Old 05-21-2004, 09:50 PM
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Just picked up my RX wed. they told me ythey are not sure what flash it has unless they hook it up . so i go back the 9 th to get the newest flash. i was wondering about the m flash with a Automatic ? most on here have MT . Any AT owners had the update and what did you notice?
Old 05-21-2004, 10:23 PM
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There is no way of knowing really if you buy off the lot what flash the car has. I would say enjoy the car and then, when you go for service, request the flash.
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