Fuel pump questions/issues
03 Swap into 02 GT (possible fuel pump or pumps failure or going bad)
Mods include:
Stock blower
2.9 pulley
Kooks Longtubes and H pipe
Single blade tb
JLT short CAI
Lund Tune
(75k miles)
Stock tank
stock pumps
Stock FPDM with wire upgrade/relay
1) Was experiencing hesitation at the top end of 3/4 throttle boost pulls and with the Aeroforce scan gauge showing 95% fuel pump duty cycle
2) 2nd or 3rd gear stab of throttle , extreme fall on its face reaction.
remedies......remove stock hat to remove pprv , installed aftermarket hat with stock pumps back in it's place.
same results as mentioned in 1 and 2 above
I have (2) 340lph pumps, I am going to install, feeling that fuel demand/supply is the issue
question??
Lund said with upgraded fuel pumps I would not need a revision tune.
I did not clarify I was going with 340 pumps when I sent my question to him, so does anyone have experience with this and do you see any potitienal problems, by installing 2 larger pumps with no tune revisons?
anything else that maybe be happening to cause the issues in 1 and 2 above?
Trying to get the car so I can enjoy it a little more but with the issues , I've been to afraid to push in on it.
03 Swap into 02 GT (possible fuel pump or pumps failure or going bad)
Mods include:
Stock blower
2.9 pulley
Kooks Longtubes and H pipe
Single blade tb
JLT short CAI
Lund Tune
(75k miles)
Stock tank
stock pumps
Stock FPDM with wire upgrade/relay
1) Was experiencing hesitation at the top end of 3/4 throttle boost pulls and with the Aeroforce scan gauge showing 95% fuel pump duty cycle
2) 2nd or 3rd gear stab of throttle , extreme fall on its face reaction.
remedies......remove stock hat to remove pprv , installed aftermarket hat with stock pumps back in it's place.
same results as mentioned in 1 and 2 above
I have (2) 340lph pumps, I am going to install, feeling that fuel demand/supply is the issue
question??
Lund said with upgraded fuel pumps I would not need a revision tune.
I did not clarify I was going with 340 pumps when I sent my question to him, so does anyone have experience with this and do you see any potitienal problems, by installing 2 larger pumps with no tune revisons?
anything else that maybe be happening to cause the issues in 1 and 2 above?
Trying to get the car so I can enjoy it a little more but with the issues , I've been to afraid to push in on it.