“Try it,” he said.
“That’s not a fracking truck,” Miles whispered. “That’s a ghost. Someone tapped the CAN bus. They were using the engine’s vibration and GPS signature to mask… what? A dirty bomb’s transport? A cartel ledger?” Cat C7 Wiring Diagram
“It’s not the sensor,” he muttered, the old confidence returning. “It’s the wire between the firewall and the block. Engine vibration. There’s a chafe point near the EGR valve bracket.” “Try it,” he said
Miles squatted. He didn’t touch the truck. He just looked. He remembered the C7’s fatal flaw: the HEUI system (Hydraulically actuated, Electronically controlled Unit Injector). It needed high oil pressure to fire the fuel. But the wiring was the nervous system. If the 5-volt reference circuit shorted to ground anywhere—even a single chaffed wire behind the valve cover—the ECM would panic and kill all power. Someone tapped the CAN bus
It was a 2008 Peterbilt 387, sleeper cab, paint bleached by the West Texas sun. It didn’t pull into the yard under its own power. It came on a flatbed, chains cinched around its axles like a prisoner. The only person who got off the flatbed was a woman he hadn’t seen since the divorce—Lena.
Then the truck arrived.
“Then what?” Lena asked.