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Old Jun 27, 2007 | 10:39 AM
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I did a search on this problem and tried everything i found but still does not work. I have a 408 tt vette and when i got up to about 14 psi i get reduced engine power. At 12.5 psi it was fine. I have tried everything i can think of to shut rep off but nothing works. Can anyone tell me how to disabe rep. If so it would be greatly appreciated. Thanks.

p.s. using hp tuners.
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Old Jun 27, 2007 | 11:45 AM
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what codes are you getting? if its p1514 generally you just need to raise that tables limits so your not breaking it.
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Old Jun 27, 2007 | 11:51 AM
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I have the table maxed at 4.10 already
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Old Jun 27, 2007 | 12:11 PM
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REP ????


Originally Posted by chrisn203
I did a search on this problem and tried everything i found but still does not work. I have a 408 tt vette and when i got up to about 14 psi i get reduced engine power. At 12.5 psi it was fine. I have tried everything i can think of to shut rep off but nothing works. Can anyone tell me how to disabe rep. If so it would be greatly appreciated. Thanks.

p.s. using hp tuners.
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Old Jun 27, 2007 | 12:17 PM
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reduced engine power (rep) code is p1514 even with table maxed
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Old Jun 27, 2007 | 12:21 PM
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ps it also does it at exactly the same rpm and kpa right around 4100 and 197kpa.
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Old Jun 27, 2007 | 12:22 PM
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have you tried incearsing the table for Airflow error vs KPA. There is a diagnostic table for just that. its a 2d table.
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Old Jun 27, 2007 | 12:25 PM
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i dont see that table. where exactly is it
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Old Jun 27, 2007 | 12:28 PM
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Scale down your IFR table and VE table by the same percentage (so fueling remains correct) and you should be good.

If the VE values on a vette are too high you will go into reduced power mode.
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Old Jun 27, 2007 | 12:30 PM
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this might sound dumb but what does ifr stand for
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Old Jun 27, 2007 | 12:34 PM
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Yeah but there is a way around the error reporting.



Originally Posted by INTMD8
Scale down your IFR table and VE table by the same percentage (so fueling remains correct) and you should be good.

If the VE values on a vette are too high you will go into reduced power mode.
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Old Jun 27, 2007 | 12:34 PM
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PM me for my email addy. I wanna look at the file.


Originally Posted by chrisn203
i dont see that table. where exactly is it
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Old Jun 27, 2007 | 12:35 PM
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hp tuners
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Old Jun 27, 2007 | 12:57 PM
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Originally Posted by chrisn203
this might sound dumb but what does ifr stand for
injector flow rate
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Old Jun 27, 2007 | 12:58 PM
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Originally Posted by LS1curious
Yeah but there is a way around the error reporting.
I've only had success with the way I described.
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Old Jun 27, 2007 | 01:21 PM
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What year vette? Care to post the file?
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Old Jun 27, 2007 | 01:25 PM
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there is more then one way to skin a cat.


Originally Posted by INTMD8
I've only had success with the way I described.
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Old Jun 27, 2007 | 01:30 PM
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01 z06
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File Type: hpt
twinturbosd.hpt (461.6 KB, 101 views)
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Old Jun 27, 2007 | 01:57 PM
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Originally Posted by LS1curious
there is more then one way to skin a cat.
Not disagreeing, just stating my personal experience.
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Old Jun 27, 2007 | 01:57 PM
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any reason your trying to keep your maf active with an operating system that is meant for Speed Density mode only?
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