P2263 on RAM: How to Diagnose & Fix
Turbo/Supercharger Boost System Performance
2 RAM models · 2 documented issues · 1 critical · $200-$4,000 repair
P2263 on RAM by model: symptoms, diagnosis and fix
The RAM 3500 6.7L Cummins equipped with the integrated exhaust brake system experiences failures of the VGT (Variable Geometry Turbocharger) actuator and exhaust brake solenoid. The exhaust brake uses the VGT turbo vanes to create backpressure for engine braking while towing. The electronic actuator (Holset HE351VE/HE300VG) sticks or fails due to carbon buildup, causing loss of exhaust brake function, reduced turbo performance, limp mode, and DTC codes P2263 or P006A. TSB 14-001-21 addresses VGT actuator calibration. Actuator replacement costs $800-1,500; complete turbo replacement is $2,500-4,000.
Common Symptoms
- Exhaust brake not engaging or weak braking effect
- Check engine light with turbo codes (P2263, P006A, P0299)
- Reduced engine power / limp mode
- Black smoke from exhaust under acceleration
- Turbo whistle or surge at idle
- Slow turbo spool-up / turbo lag
- Exhaust brake light blinking
How to Fix
For sticking actuator: Remove and clean the VGT actuator and turbo vanes of carbon deposits. Actuator exercise procedure via wiTECH can help prevent sticking. Check TSB 14-001-21 for actuator calibration procedure. If the actuator motor is failed, replace the electronic actuator assembly ($800-1,500, Holset 5497296 or 5610723). If turbo vanes are severely carboned or damaged, complete turbo replacement is needed ($2,500-4,000). Regular highway driving helps keep vanes clean; trucks that idle excessively build up carbon faster.
The Holset HE351VE variable-geometry turbocharger uses an electronically controlled actuator (the geartrain and control board that moves the vane sliding ring) that is a well-documented failure point, often before 100k miles. Soot and carbon buildup, rust/corrosion binding the vane arm, worn actuator gears, or a corroded circuit board (from coolant/water intrusion) cause the actuator to stop positioning the vanes correctly. The truck then either spools quickly but chokes at mid/high rpm or spools slowly with a big loss of low-end torque, and typically drops into limp mode. Owners on Cummins forums report repeat failures and note the unit must be scan-tool programmed to the specific turbo after replacement.
Common Symptoms
- Loss of power / limp mode
- Slow or no turbo spool
- Excessive turbo whistle or lack of boost
- Check engine light with turbo actuator codes
- Sluggish acceleration when towing
- Actuator gear grinding/clicking on startup
How to Fix
Replace the VGT actuator with a genuine remanufactured Holset unit (common OEM/service PNs for 2007.5-2012: 2837675 / 4034315HX / 4046534 / 4049828; later 2013-2018 trucks use the updated HE300VG actuator). The new actuator MUST be calibrated/aligned and programmed to the turbo with a Cummins-capable scan tool (wiTECH) or a pre-programmed 'corded' plug-and-play unit such as the BD Diesel corded HE351 actuator. If the vane mechanism itself is seized with soot the whole turbo may need replacement. Clean the vanes/EGR side and address coolant leaks that corrode the board to prevent recurrence.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- BD Diesel 1045922 remanufactured HE351 turbo actuator
Confirm turbo tag.
- BD Diesel 1045923 HE300VG turbo actuator
Do not extrapolate to 2019-2024.
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Sources for this issue (3)
P2263 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2263 mean on a RAM?
P2263 stands for "Turbo/Supercharger Boost System Performance." This code means the computer has detected that the turbocharger or supercharger boost system is not performing as expected, even though no single sensor circuit has failed. The computer compares the actual manifold boost pressure against the target it commanded and sets this code when they don't match for a sustained period. You may notice low power, sluggish acceleration, or limp mode. It signals an overall boost shortfall and usually points to leaks, a failing turbo/charger, or a control component rather than a specific wiring fault. On RAM it is documented across 2 models: 3500, 2500.
What are the most common causes of P2263?
The most common causes of P2263 are: Boost/intake leak in piping, hoses, or couplers, Failing turbocharger or supercharger, Stuck or faulty wastegate or boost control actuator, Faulty boost/MAP pressure sensor, Clogged or damaged charge air cooler (intercooler), Sticking variable-vane (VGT) mechanism on diesels, Faulty boost control solenoid or vacuum supply, Restricted air filter or intake restriction. The specific cause varies by vehicle.
How much does it cost to fix P2263 on a RAM?
Published repair estimates on RAM range from $200 to $4,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P2263 on a different make?
View P2263 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.