Need help installing 42#ers
TECH Apprentice
Joined: Dec 2001
Posts: 357
Likes: 0
From: Anch., Alaska
Re: Need help installing 42#ers There are four total Lrtrims on atap.
Long term fuel trim bank1
Long term fuel trim bank1
Long term fuel trim bank2
Long term fuel trim bank2
Just like that. Which ones should I be monitoring out of those??
They all read different, so I am assuming they are not the same. Thanks for the help.
The guy who I am basing my setup after, has about 10 more psi of fuel pressure at idle, so I may try to turn up my factory regulator to match his, because he is gettign excellent Ltrims, and excellent AF on the wideband.
We botht the same aux fuel pump, and same Procharger. His is an 02, mine is a 2000, both 5.3's. Sam
BTW our stock flow rate tables are flat on the trucks, so I kept mine flat also. It is at 5.22 right now. I am fairly close to zero, a little positive
Long term fuel trim bank1
Long term fuel trim bank1
Long term fuel trim bank2
Long term fuel trim bank2
Just like that. Which ones should I be monitoring out of those??
They all read different, so I am assuming they are not the same. Thanks for the help.
The guy who I am basing my setup after, has about 10 more psi of fuel pressure at idle, so I may try to turn up my factory regulator to match his, because he is gettign excellent Ltrims, and excellent AF on the wideband.
We botht the same aux fuel pump, and same Procharger. His is an 02, mine is a 2000, both 5.3's. Sam
BTW our stock flow rate tables are flat on the trucks, so I kept mine flat also. It is at 5.22 right now. I am fairly close to zero, a little positive
Adkoonerstrator
iTrader: (4)
Joined: Nov 2001
Posts: 21,420
Likes: 0
From: Deep in the seedy underworld of Koonerville
Re: Need help installing 42#ers Sam - The flowrate is flat on the trucks because the fuel pressure regulator is manifold referenced. If you look there is a small vacuum line attached to the regulator on the driverside of the fuel rail. 
When you tune just leave the flowrate numbers flat across the board. The referenced regulator takes care of the adjustments for you.
John
When you tune just leave the flowrate numbers flat across the board. The referenced regulator takes care of the adjustments for you.
John
Thread Starter
On The Tree
Joined: Dec 2002
Posts: 189
Likes: 0
From: Stalking the streets of Maryland
Re: Need help installing 42#ers
i didnt know you were going to edit the computer, if so then you are in the same boat as me.. my flowrate is 5.51 in every cell.
BH
