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.

 

what codes are you getting? if its p1514 generally you just need to raise that tables limits so your not breaking it.

 

I have the table maxed at 4.10 already

 

REP ????

 

reduced engine power (rep) code is p1514 even with table maxed

 

ps it also does it at exactly the same rpm and kpa right around 4100 and 197kpa.

 

have you tried incearsing the table for Airflow error vs KPA. There is a diagnostic table for just that. its a 2d table.

 

i dont see that table. where exactly is it

 

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.

 

this might sound dumb but what does ifr stand for

 

Yeah but there is a way around the error reporting.

 

PM me for my email addy. I wanna look at the file.

 

hp tuners

 

injector flow rate

 

I've only had success with the way I described.

 

What year vette? Care to post the file?

 

there is more then one way to skin a cat.

 

01 z06

 

Not disagreeing, just stating my personal experience.

 

any reason your trying to keep your maf active with an operating system that is meant for Speed Density mode only?