Lastest update bad for MDS and MPG - Hemi Truck Club
 
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Old 02-09-2008, 07:39 PM   #1
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Lastest update bad for MDS and MPG

Noticed that my truck is getting bad MPG and MDS is kicking in and out. Just came from the flashpaq forum and seems to be common problem SC knows about it but doesn't know why it's happening. So if you read this before you update your MDS truck you should wait until they work it out.

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Old 02-09-2008, 08:47 PM   #2
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Lastest update bad for MDS and MPG

Thanks for the heads up!
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Old 02-09-2008, 10:00 PM   #3
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Lastest update bad for MDS and MPG

That sucks, is there a way you remove the update and put things back to how they were beforehand?
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Old 02-10-2008, 06:21 PM   #4
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Lastest update bad for MDS and MPG

Quote:
quote:Originally posted by UsmcMan96:
That sucks, is there a way you remove the update and put things back to how they were beforehand?
Not to my knowledge people at the flashpaq site are either flashing back to stock or leaving it as it's a toss up either power or gas mileage.
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Old 02-11-2008, 09:42 AM   #5
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Lastest update bad for MDS and MPG

Just set mine to stock for a test man already my 260 cam doesn't like it. I'll give it a few days and check my MPG and power.
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Old 02-11-2008, 02:33 PM   #6
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Lastest update bad for MDS and MPG

Quote:
quote:Originally posted by bigkumadog:
Just set mine to stock for a test man already my 260 cam doesn't like it. I'll give it a few days and check my MPG and power.
Well that was quick put the SC 91 tune back as the 260 cam would not keep the idle and would die some times. Good thing through seems to be running better after reseting the PCM and SC
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Old 02-12-2008, 07:07 PM   #7
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Lastest update bad for MDS and MPG

I updated mine and switched to the 87 tune and I can feel it too. The torque converter is going crazy at low speeds.
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Old 02-12-2008, 08:29 PM   #8
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Lastest update bad for MDS and MPG

Is this happening with both the 87 and 91 tune with v93,.. cause my truck is running flawless,.. I will check again this week,.. but I have checked twice now and don't see any change from v91
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Old 02-13-2008, 12:05 AM   #9
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Lastest update bad for MDS and MPG

Power is certainly up with the tune, Performance 91 or the 87, but the transmission does seem to act funny at times. I've noticed it calms down the more I drive. That being said, I think I'm losing at least 1MPG and it doesn't matter which tune, 87 or 91.
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