FMU question
03-31-2005, 01:30 AM
#1
Senior Member
Thread Starter
Join Date: Sep 2009
Posts: 4,185
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: Elantra HD / 2007
FMU question
If I use FMU for fuel management (without piggy-back, boost up to 7-8psi).
Will it work with my stock MAP sensor?
Will ECU throw any CEL?
Will it work with my stock MAP sensor?
Will ECU throw any CEL?
03-31-2005, 08:21 AM
#2
Senior Member
Join Date: Oct 2003
Location: Fort Erie, Ontario
Posts: 3,832
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2004 Acura TL
By my understanding you need to have both. The FMU will increase fuel pressure and the piggy-back will tell the injectors to use that extra fuel.
If you have the extra pressure you need something to control the injectors.
If you have the extra pressure you need something to control the injectors.
03-31-2005, 12:56 PM
#7
Senior Member
Thread Starter
Join Date: Sep 2009
Posts: 4,185
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: Elantra HD / 2007
Thanx.
So as I understand FMU can be much easier to use on MAF based Tib.
CEL=bad, so I deffinitely need MAP change. And since new MAP (2 bar) piggy-back deffinitely should be used, cause ECU will not understand new MAP correctly.
So I think I'll go this way for fuel management:
-piggy back
-bigger injectors
-fuel pump
(without FMU)
So as I understand FMU can be much easier to use on MAF based Tib.
CEL=bad, so I deffinitely need MAP change. And since new MAP (2 bar) piggy-back deffinitely should be used, cause ECU will not understand new MAP correctly.
So I think I'll go this way for fuel management:
-piggy back
-bigger injectors
-fuel pump
(without FMU)