[gster109]

I think i scuffed the connection to the fuel line under the intake manifold to be honest. It wasnt reading out at all initially when i put the car back tg but i prodded a stick thru the manifold & wiggled the connection & now it sometimes reads out 0 & sometimes reads out 113-114 psi no variation. Do i need to fix that connection? Just a rare, stupid issue right?

the rail pressure psi's are perfect & the car runs like a dream with fresh index 12's the dash is fully clear & the car pulls like a train WOT all the way to redline.

[gster109]

Can anyone chime in? I see it fluctuating from 90-114 psi on the lpfp sensor in MHD.

IS my lpfp being overworked or is the reading glitched?

[Saif2018]

Originally Posted by gster109

I think i scuffed the connection to the fuel line under the intake manifold to be honest. It wasnt reading out at all initially when i put the car back tg but i prodded a stick thru the manifold & wiggled the connection & now it sometimes reads out 0 & sometimes reads out 113-114 psi no variation. Do i need to fix that connection? Just a rare, stupid issue right?

the rail pressure psi's are perfect & the car runs like a dream with fresh index 12's the dash is fully clear & the car pulls like a train WOT all the way to redline.

You need to fix that connection issue, unless you want to drive blind and never Monitor LPFP correctly.

[gster109]

Originally Posted by Saif2018

You need to fix that connection issue, unless you want to drive blind and never Monitor LPFP correctly.

You think thats the issue? No way this pump is running 100 psi right??

I will get on the connection. Rail pressure always around 700 at minimum.

[Saif2018]

Originally Posted by gster109

You think thats the issue? No way this pump is running 100 psi right??

I will get on the connection. Rail pressure always around 700 at minimum.

Highly doubt your LPFP is running over 100psi+

Does MHD show LPFP is dropping when you go WOT?

HPFP should be around 700psi at idle (after cold start is finished)

Should never drop below 1500psi at WOT. At part throttle it varies a lot.

[gster109]

Originally Posted by Saif2018

Highly doubt your LPFP is running over 100psi+

Does MHD show LPFP is dropping when you go WOT?

HPFP should be around 700psi at idle (after cold start is finished)

Should never drop below 1500psi at WOT. At part throttle it varies a lot.

Oh ya hpfp is rock solid psi wise rn.

[lookalikehuuh]

Could also be the sensor itself is failed... I had to replace mine some time ago because it was just reading some static value and never changed.