Owner of this beastly 1995 Chevy K3500 6.5 Turbo DIESEL had it towed to PHAD to diagnose a strange throttle control issue.
He says the truck is hard to start, and then REVS THROUGH THE ROOF without touching the accelerator!! WHAT?!

Eventually once it warms up, the truck is "somewhat driveable".
The owner drove it in this state for TWO WEEKS and tried a new Accelerator Pedal and Pump Driver Module, which didn't fix the problem.
Finally he had enough, and towed it to PHAD!

Let's dive in to some old-school Diesel technology, which was a state-of-the-art computer-controlled system for 1995.

Can we make heads or tails of why this truck wants to REV THROUGH THE ROOF?
Is it a ELECTRONIC CONTROL problem, or a MECHANICAL PUMP problem?

IVAN'S PICO WAVEFORMS:
https://drive.google.com/drive/folder...

Enjoy!
Ivan