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This thread is chasing high side fuel pressure dropoff but looking at the idle areas he's swinging 20psi on low side fuel pressure. https://forum.hptuners.com/showthread.php?79111

Here's another...

Hello,

I wanted to share my issue and everything I've done to try to correct it. On my 2016 Camaro SS, I have the LT4 high and low pressure fuel pumps. What I'm seeing is that the low side...

Did anyone ever figure out a fix for this kind of issue? I'm seeing the exact same thing happen in my 2016 camaro SS with LT4 HPFP and LT4 LPFP.