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railroader

Autocross Newbie
Location
Yuma Arizona
Not sure if your maps are tuned that way, but your fuel pressure is dropping after 6500 rpm. Lambda set and actual are still good though. Looks like a fun ride!
he is just out of fuel pump
 

JahR32

New member
Location
Dayton, OH
Car(s)
MK7 GOLF R, MK4 R32
Your low rail pressure is to low, you don't really want it to drop below 5bar, car might feel good but your walking on thin ice
I noticed the same thing so went back and looked at logs since I started with the MPI. I have always dipped pretty low. Seems like I need to replace the factory fuel line.
 

railroader

Autocross Newbie
Location
Yuma Arizona
Likely because I am running full e on the stock fuel line
You running the stock controller, you probably won't gain that much just by running a bigger fuel line, it will help a little but your lpfp is dropping below 4bar,
 

JahR32

New member
Location
Dayton, OH
Car(s)
MK7 GOLF R, MK4 R32
You running the stock controller, you probably won't gain that much just by running a bigger fuel line, it will help a little but your lpfp is dropping below 4bar,
Yes. Still on the stock controller. I can back down to something closer to e50 to see how much that helps.
 

railroader

Autocross Newbie
Location
Yuma Arizona
Yes. Still on the stock controller. I can back down to something closer to e50 to see how much that helps.
It would help, if you do drop your timing, your tuner frank has never said anything about your low fuel pressure, my opinion is you should pick up a pm4 so you don't have to worry about it
 

JahR32

New member
Location
Dayton, OH
Car(s)
MK7 GOLF R, MK4 R32
Oh look another Mabo car with low fuel pressure.

Fuckin comedy at this point.

#MaboGate
Car feels great without any timing pull and with the lambda still tracking along with the HP side holding...I am not sure how close it really is to "running lean" but certainly worried given the consequences of starving the HPFP. Going to drop down from full e and slightly adjust timing. Any other suggestions? I am one to always max out my mods before moving on the next thing...

It's a very slow approach but keeps me from selling cars every 3 years and I learn a ton along the way! 50k on the car tuned and not a single issue so far.
 

marc5800

Drag Race Newbie
Location
Ottawa
?
 

marc5800

Drag Race Newbie
Location
Ottawa

mw1978

Ready to race!
Location
Europe
Does anyone have issue with flash cable communications and 8.6.1 firmware???
 
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