Hi, I recently got into these c7s and on a 2019 c7z06 I was scanning, I noticed the low pressure side's "fuel pressure" channel was bouncing around a lot.
At a steady speed the "fuel pressure requested" channel said 65 psi but the "fuel pressure sae" channel would show anywhere from 30 psi to 100 psi, constantly fluctuating. At full throttle it also jumped around but mostly to higher values than the "fuel pressure requested" channel.
*The high side pressure fuel pressure seemed fine as the "desired fuel pressure" and "fuel rail pressure" were very close to each other.*
On a 2013 Zl1 I scanned in the past, the "fuel pressure sae" would only fluctuate a few psi if that, and closely matched the "fuel pressure requested" channel.
I asked another tuner and he said it's probably an Hp Tuner scanner bug as he said it happens a lot on the gen5 trucks.
Is this Normal on the c7 vettes?