Vcm scanner help
Thread Starter
Instructor
Joined: May 2022
Posts: 222
Likes: 77
Vcm scanner help
Anytime I run a scan my fuel pressure never changes. So I pulled the fuse pump relay and the car died. But pressure still didn't change. Where can I get an accurate fuel pressure with the vcm scanner
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,626
Likes: 4,069
From: Cape Coral, Florida
What is your VCM Scanner ??…I have a few $2000 plus factory level aftermarket scanners that don’t show fuel pressure…get a fuel pressure gauge…if you had a car like a C7 Corvette with a high pressure fuel pump you can view this fuel pressure because it has a fuel rail pressure sensor.
Last edited by C5 Diag; Aug 4, 2025 at 06:12 PM.
Pro
Joined: Oct 2024
Posts: 725
Likes: 399
From: WI
VCM Scanner is one of the HPTuners apps used with their MPVI device. C6 corvettes don't have a fuel pressure sensor - the scanner just displays a virtual 58psi. You will need to add an actual fuel pressure sensor to log fuel pressure.
