moregrip

iTrader: (8)

I am going to attempt to make my own startup tune for the truck(baby steps), I am not very tuner savvy and basically need to be hit over the head in the simplest terms.

First Question, is "Fuel Control" the parent location where I'll go to adjust for the larger injectors? which tables do I need to modify?

kbracing96

iTrader: (26)

Yep, Flow Rate vs KPA will need to be set for your new injectors. Also probable need to lower your Min Injector Pulse to so it will idle.

moregrip

iTrader: (8)

so I need to set this table to whatever the injectors will flow @ 58psi?

kbracing96

iTrader: (26)

Yep

moregrip

iTrader: (8)

and I set this to some value less than whats listed below so the larger injectors don't dump to much fuel into the motor?

kbracing96

iTrader: (26)

Yep again Mostly, thats an idle issue, bigger injectors can't squirt small enough amount in that specific amount of time to keep the idle AFR in check.

moregrip

iTrader: (8)

which brings me to my next question, how many total tables effect engine idle? or more specifically, what other tables should I be looking to modify to satisfy my fueling needs using the larger injectors? or is that it?

03sierraslt

iTrader: (22)

With my 60's that min pulse table was too low, they would missfire at idle and it ran lean. My min pulse is in the 1.0 range..

03sierraslt

iTrader: (22)

Injector offset Vs. Volts is another key player.

Also once its running you will want to modify your RAF table for your new airflow values.

moregrip

iTrader: (8)

if the 60lb'ers aren't responsive enough to handle the lower InjPW how do we compensate for them being larger and open longer?