P0046moderate severityPowertrain

Turbo/Supercharger Boost Control Solenoid Circuit Range/Performance

on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

The boost control solenoid is not responding within expected parameters.

Symptoms

  • Check Engine Light
  • Overboosting or underboosting
  • Reduced power
  • Surging

Common causes

  • Sticking solenoid
  • Vacuum leak
  • Wastegate stuck
  • Boost pressure sensor fault

Diagnostic steps

  1. Monitor boost pressure vs commanded
  2. Test solenoid operation
  3. Check vacuum lines
  4. Inspect wastegate

Repair notes

Replace solenoid or repair wastegate.

Other Powertrain codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
🔓 LIBERATED FOREVER
The 2014 Ram 2500 6.7L I6 Cummins Diesel repair data is free for every DIYer and shop on earth, permanently, because Lost Pines Precision Automotive, Bastrop, TX paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like Lost.
Free another vehicle →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →