My ficm is starting thru the summer at 35 and slowly reaching up to 48
and fluxuates from 48 to 45. I beilieve it is failing .And if so. which is the best way to go 48v. or 58v . I run a constructuion company so on acasition i have to pull a dump trailer. I currently have the egr delete and runing a stc on street program. As well as the coolant filter.
I dont want to put anything that will damage the engine on it.

 

Send it to ed at ficmrepair.com. He will repair it quickly and as far as I am concerned there is no one better. 48v and the Atlas 40 is a great upgrade.

 

let me check it out
so do you believe it is definitly faliing. Both batterys are brand new

 

i looked on the site and dont see anything about an atlas 40

 

Yes it is failing if your getting 35 volts. Anything under 45 and it is failing. Click on the blue faq page for the atlas 40

 

got it thanks

 

No problem.

 

what type of sevice did you get . Do you think the prmeum is ok

 

I have had multiple ficm's sent there and have all kinds of service. Premium is good.

 

Premium is the only way to go IMHO, especially if you're in it for the long haul.

 

Swapped my failing ficm with one from Ed and had the atlas 40 upgrade done. WOW, what a difference! Mileage is up, as well as driveability!