RP Surge (Highway Speed)

WoodBoy · Feb 29, 2012

Over 450 miles on the street tune in the past week and a half and still not one frp/shuttering

Dzchey21 · Feb 29, 2012

Anyone note what the fuel temps are when this happens?

Mine does it at 120 degrees fuel temp. If I unhook the fuel temp sensor then it goes away...

Someone with a stock fuel system should try this. I think its something in the software

WoodBoy · Feb 29, 2012

Never monitored it Dustin, is there a fuel temp gauge on the livewire?

Dzchey21 · Feb 29, 2012

Dunno I always use my dash daq

Next time someone has the issue pull over and unhook the temp sensor from the fuel bowl and see if it stops ... and then let me know lol

MINK · Mar 1, 2012

Dzchey21 said:
Dunno I always use my dash daq

Next time someone has the issue pull over and unhook the temp sensor from the fuel bowl and see if it stops ... and then let me know lol

I'm gonna do it in acouple hours on my lunch break - worth a shot

MINK · Mar 1, 2012

No change for me with the sensor un plugged.

Dzchey21 · Mar 1, 2012

K thanks for trying ...

Dammit

MINK · Mar 1, 2012

Dzchey21 said:
Dammit

That was the first word out of my mouth :doh:

gman1 · Mar 1, 2012

WoodBoy said:
Over 450 miles on the street tune in the past week and a half and still not one frp/shuttering

I drove to SDX last year on the street tune and not one issue. Its just the 2 higher tunes.

Dzchey21 said:
Anyone note what the fuel temps are when this happens?

Mine does it at 120 degrees fuel temp. If I unhook the fuel temp sensor then it goes away...

Someone with a stock fuel system should try this. I think its something in the software

It does not matter on mine what the fuel temps are.

bellyboat · Mar 1, 2012

My Spartan has the same issue.Some tunes are worse then others.

WoodBoy · Mar 1, 2012

Switched back to the extreme street, just got done with my fuel filters and oil change. Still shuttering

3brorce · Mar 5, 2012

WoodBoy said:
Switched back to the extreme street, just got done with my fuel filters and oil change. Still shuttering

Did you notice a difference in power or if that older ford flash fueled harder than the newer ford flash? I know it is supposed too but could you notice a difference?

WoodBoy · Mar 5, 2012

No Im sure the difference will be more or less at WOT, it does seem a little more pedal sensative on the higher tunes.

Ronin · Apr 2, 2012

Mine shuddered BAD with the IDP tunes; all of them. Never did when it was stock...

Told Matt/Gearhead about it before buying his tunes and he told me it wouldn't be a problem...and it hasn't! The FRP fluctuation is completely gone.

gman1 · Apr 3, 2012

Ronin said:
Mine shuddered BAD with the IDP tunes; all of them. Never did when it was stock...

Told Matt/Gearhead about it before buying his tunes and he told me it wouldn't be a problem...and it hasn't! The FRP fluctuation is completely gone.

I may have to try Matts tunes out if it cures the surging.