ECU/PCM "flash" Info/questions
04-29-2004, 08:14 PM
#226
Thews8
may be i need to tell them its having a hardtime starting when cold. I told them it had crappy gas milage. it does drive driffrently.. but no m flash. unless i am doing the break thig wrong.
04-29-2004, 08:19 PM
#227
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Originally posted by thew
may be i need to tell them its having a hardtime starting when cold. I told them it had crappy gas milage. it does drive driffrently.. but no m flash. unless i am doing the break thig wrong.
may be i need to tell them its having a hardtime starting when cold. I told them it had crappy gas milage. it does drive driffrently.. but no m flash. unless i am doing the break thig wrong.
04-30-2004, 01:29 PM
#236
Apexing at Oak Tree
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Also check on your front door or front suicide door. My dealer put a sticker there saying I had a Mazda approved upgrade to the ECU and put the part number of the M flash on the sticker.
04-30-2004, 02:07 PM
#238
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i already posted this today, somewhere esle, but i'll mention again....
i got M flash tuesday.... my 8 is a newer one, bought in Jan, fresh off the truck with plastic and all..... i cannot get the brake test to work, but there is a new blue sticker under the hood... it doesn't say M flash but it does have:
the date 4-27-04
dealer #
and another #
i got M flash tuesday.... my 8 is a newer one, bought in Jan, fresh off the truck with plastic and all..... i cannot get the brake test to work, but there is a new blue sticker under the hood... it doesn't say M flash but it does have:
the date 4-27-04
dealer #
and another #
04-30-2004, 02:17 PM
#239
Thews8
well my eight is only 2 weeks old to me but it has a build date of 6/03 so its beesitting around for a while ..
As for the break test I am kinda woundering if it jut happens with some modle 8's .... hard to say since it seems that everone else here say that if you have m or l you will get the break thing to work..
MAybe like me your dealer did not really flash you ??
that blue sticker is msot like the recall sticker.. there were to recalls
1604 b and 1704 b if you see thoes numbers than it just means that they did a factor recall on it .
Air bags and damper shield.
As for the break test I am kinda woundering if it jut happens with some modle 8's .... hard to say since it seems that everone else here say that if you have m or l you will get the break thing to work..
MAybe like me your dealer did not really flash you ??
that blue sticker is msot like the recall sticker.. there were to recalls
1604 b and 1704 b if you see thoes numbers than it just means that they did a factor recall on it .
Air bags and damper shield.
05-01-2004, 10:37 AM
#240
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Second day with M Flash... I believe they did the M although there is no sticker.
My sense is smoother low end power delivery. More low end torque too.
Car is even easier to drive than before.
My sense is smoother low end power delivery. More low end torque too.
Car is even easier to drive than before.
05-05-2004, 01:12 PM
#244
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We all have to admit that humans are probably far from the best measuring device when it comes to judging whether or not any given PCM reflash increases or decrease hp. However ....
After reading all the posts over the past few weeks, the consensus on the M flash seemed to be slightly better fuel efficiency, less power on the low end, smoother (perhaps higher) power at the top end.
I have no opinion on fuel efficiency at this point. But let me be the first to disagree with the perception of decreased power at the low end! WOW! With only 3000rpm on the clutch I am spinning out on the stock Potenzas. That never happened by accident before the reflash. I will be the first to admit I am no professional driver, but the difference feels obvious. I'm seriously looking forward to my Stage 1!
After reading all the posts over the past few weeks, the consensus on the M flash seemed to be slightly better fuel efficiency, less power on the low end, smoother (perhaps higher) power at the top end.
I have no opinion on fuel efficiency at this point. But let me be the first to disagree with the perception of decreased power at the low end! WOW! With only 3000rpm on the clutch I am spinning out on the stock Potenzas. That never happened by accident before the reflash. I will be the first to admit I am no professional driver, but the difference feels obvious. I'm seriously looking forward to my Stage 1!
05-05-2004, 02:01 PM
#245
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I sure someone will run down to a dyno and get before and after numbers to dissect to the nth degree how much/how little the M flash does do. The end result is that a car that was fun to drive and got crappy mileage is now funner to drive and gets better mileage. Seat of the pants might not be the most accurate way to determine the advantages of the remapped ECU, but it is the way I like best.
05-05-2004, 02:25 PM
#246
Administrator
i watched an M flashed car pull less T but more HP on a dynojet than a non M flashed car this past weekend. the nonM car went into limp mode and would not reset itself until the next day. the M went into a sort of half limp mode. it limped on the dyno but but only flashed its DSC light until it was turned off and back on when it immediatly reset. the other had the solid dsc and abs lights and 1 or 2 other until the next morning. i wonder if M has more in it than we think and also doesn't retard the timing and such as much or maybe it waits longer to throw itself into hard limp mode. what i do know is the numbers. 162whp for the nonM car and 173 for the Mcar. T was 133 vs 129 respectively. close enough that i would say no actuall T difference.
05-05-2004, 03:48 PM
#247
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Originally posted by zoom44
i watched an M flashed car pull less T but more HP on a dynojet than a non M flashed car this past weekend. the nonM car went into limp mode and would not reset itself until the next day. the M went into a sort of half limp mode. it limped on the dyno but but only flashed its DSC light until it was turned off and back on when it immediatly reset. the other had the solid dsc and abs lights and 1 or 2 other until the next morning. i wonder if M has more in it than we think and also doesn't retard the timing and such as much or maybe it waits longer to throw itself into hard limp mode. what i do know is the numbers. 162whp for the nonM car and 173 for the Mcar. T was 133 vs 129 respectively. close enough that i would say no actuall T difference.
i watched an M flashed car pull less T but more HP on a dynojet than a non M flashed car this past weekend. the nonM car went into limp mode and would not reset itself until the next day. the M went into a sort of half limp mode. it limped on the dyno but but only flashed its DSC light until it was turned off and back on when it immediatly reset. the other had the solid dsc and abs lights and 1 or 2 other until the next morning. i wonder if M has more in it than we think and also doesn't retard the timing and such as much or maybe it waits longer to throw itself into hard limp mode. what i do know is the numbers. 162whp for the nonM car and 173 for the Mcar. T was 133 vs 129 respectively. close enough that i would say no actuall T difference.
05-05-2004, 06:14 PM
#248
guys just got my cz 1.1 and rb exhaust installed. It does make a differance! My question though is I have the L flash. Does the M flash really change anything from the L? Is it really worth pursuing? I get the impression that it doesnt, just maybe a little less flooding risk. What do you think?
05-05-2004, 06:58 PM
#249
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Originally posted by zoom44
i watched an M flashed car pull less T but more HP on a dynojet than a non M flashed car this past weekend. the nonM car went into limp mode and would not reset itself until the next day. the M went into a sort of half limp mode. it limped on the dyno but but only flashed its DSC light until it was turned off and back on when it immediatly reset. the other had the solid dsc and abs lights and 1 or 2 other until the next morning. i wonder if M has more in it than we think and also doesn't retard the timing and such as much or maybe it waits longer to throw itself into hard limp mode. what i do know is the numbers. 162whp for the nonM car and 173 for the Mcar. T was 133 vs 129 respectively. close enough that i would say no actuall T difference.
i watched an M flashed car pull less T but more HP on a dynojet than a non M flashed car this past weekend. the nonM car went into limp mode and would not reset itself until the next day. the M went into a sort of half limp mode. it limped on the dyno but but only flashed its DSC light until it was turned off and back on when it immediatly reset. the other had the solid dsc and abs lights and 1 or 2 other until the next morning. i wonder if M has more in it than we think and also doesn't retard the timing and such as much or maybe it waits longer to throw itself into hard limp mode. what i do know is the numbers. 162whp for the nonM car and 173 for the Mcar. T was 133 vs 129 respectively. close enough that i would say no actuall T difference.
05-05-2004, 07:37 PM
#250
Administrator
nope ran them with the sensors on. not much time to be messing around with sensors when you are trying to get 3 runs each for 10 people from 8 to midnite on a mobile dyno trailer.