6.7L Cummins P2262: Causes and How to Fix It

A 6.7L Cummins P2262 code -- Turbo Boost Pressure Not Detected, Mechanical -- means the engine control module has determined that the turbocharger is not generating boost pressure through a mechanical failure rather than a sensor reporting error. The 6.7L Cummins P2262 is a more specific turbo fault than P0299 (general underboost), because it indicates the ECM has ruled out a sensor issue and identified a mechanical failure within the turbocharger system itself. On the 6.7L Cummins, the most common cause is a failed or sticking Holset variable geometry turbocharger actuator. This guide covers what causes P2262 on the 6.7L Cummins, how to confirm the fault, and what repairs are required.

What P2262 Means on the 6.7L Cummins

P2262 is a manufacturer-specific code that distinguishes a mechanical boost failure from an electrical or sensor fault. When the ECM sets P2262 on the 6.7L Cummins, it has already ruled out a boost pressure sensor reporting error -- it has confirmed that the turbo is not producing boost mechanically. This makes P2262 more actionable than a general boost pressure code because it points directly to the turbocharger's variable geometry system or the actuator that controls it.

The 6.7L Cummins uses a Holset variable geometry turbocharger (VGT) from 2007.5 through the current production run. The VGT uses movable vanes in the turbine housing that adjust the exhaust gas flow angle to control boost pressure. An electronic actuator mounted on the turbocharger controls vane position in response to ECM commands. The 2007.5-2012 generation uses the Holset HE351VE, and the 2013-2018 generation uses the Holset HE300VG. Both have electronic actuators, and both have documented actuator failure modes that produce P2262.

When the actuator fails on the 6.7L Cummins, the vanes typically default to a fixed position. If they default open (no restriction), the turbo produces little or no boost at low RPM and underpowers the engine. If they default closed, boost builds rapidly and may produce a different set of codes alongside P2262. Either failure mode is a mechanical boost production problem that P2262 is designed to capture.

Fitment: 6.7L Cummins P2262 Applies to These Trucks

• 2007.5-2024 Ram 2500 6.7L Cummins diesel
• 2007.5-2024 Ram 3500 6.7L Cummins diesel
• 2019-2024 Ram 4500/5500 chassis cab 6.7L Cummins diesel

The actuator design changed at the 2013 model year -- the 2007.5-2012 HE351VE uses a different actuator than the 2013-2018 HE300VG and later variants. Confirm the model year when ordering a replacement actuator. Actuator programming may also be required after replacement on some model years to calibrate the new unit to the ECM.

Top Picks: 6.7L Cummins P2262 Repair Parts

For a 6.7L Cummins P2262 on a 2013-2018 Ram 2500 or Ram 3500, the 6.7L Cummins Turbo Actuator 2013-2018 is the direct replacement for the Holset HE300VG actuator that controls VGT vane position on this generation. A failed actuator is the primary mechanical cause of P2262 on these trucks, and replacing the actuator with a correctly calibrated unit restores full vane control and returns the turbo to commanded boost production. The replacement actuator fits the factory turbocharger and requires no modifications to the turbo housing or charge air plumbing.

For a 6.7L Cummins application where the turbocharger itself has failed alongside the actuator -- or where the owner is building for higher output -- the ATS Diesel Aurora 4000 Stage 2 Upgraded Turbo System for 2013-2018 Dodge 6.7L Cummins (202-402-2392) is a complete turbocharger replacement that addresses both the actuator and turbo in a single higher-output upgrade. The Aurora 4000 VNT is a direct-fit replacement that retains the factory VGT interface while improving turbo efficiency and output capacity for modified engines in the 400-600 hp range. Browse the complete Cummins turbocharger and actuator catalog for actuator replacements and turbo upgrades across all 6.7L production years.

Match to the Build

The right repair for 6.7L Cummins P2262 depends on the truck's history and what the inspection reveals:

• P2262 with P0299 (underboost) at the same time: This combination is the clearest indicator of a VGT actuator failure. P0299 confirms underboost is occurring; P2262 confirms it is mechanical. On a truck with this code pair, test the actuator's electrical function first -- if the actuator motor or position sensor is out of range, replace the actuator before any other turbo work. Most P2262 repairs on the 6.7L Cummins begin and end with the actuator.
• P2262 with turbo noise or oil consumption: If P2262 appears alongside bearing noise from the turbocharger or oil in the charge air pipes, the turbocharger has failed beyond the actuator. In this case, a full turbocharger replacement is required -- the actuator failure may have been a contributing factor, but the turbo itself is no longer serviceable with only an actuator swap.
• P2262 after a cold soak or in cold weather: Carbon buildup on the VGT vanes is a known issue on 6.7L Cummins engines that see a lot of short-trip, low-load operation. When carbon accumulates on the vane pivots, the vanes stick in position and the actuator cannot move them correctly. A cold soak that causes lubricant to thicken can temporarily worsen vane sticking. If P2262 clears after a hard highway run and does not return immediately, vane sticking from carbon deposits is the likely cause and a forced regeneration or extended highway operation may temporarily resolve it -- though a cleaning or actuator replacement is the permanent fix.
• P2262 on a tuned or modified 6.7L Cummins: A tuned 6.7L Cummins operating near the stock turbo's ceiling may set P2262 when the turbo cannot produce the boost the tune is requesting. This is a capacity limit rather than a mechanical failure -- the actuator and vanes are functioning correctly but the turbo wheel and housing cannot deliver the commanded pressure at the modified fuel and airflow level. A turbo upgrade is the correct solution in this case.

Signs the Turbo or Actuator Needs Attention

• Black smoke under acceleration with reduced power output -- turbo not building boost relative to fuel demand; the engine is running rich because air delivery cannot keep up with the fuel being commanded
• Actuator position feedback error codes alongside P2262 -- the ECM is detecting that the actuator is not reaching the commanded vane position; electrical test of the actuator motor and position sensor is the next step
• Turbo response lag at low RPM that was not present previously -- VGT vanes stuck in a less-efficient position; characteristic of vane carbon deposits or early actuator wear before full failure
• Oil weeping from the turbocharger center section or visible in the air intake -- seal wear in the turbo bearing housing; a mechanical failure that may accompany or precede P2262 on a high-mileage turbo
• P2262 returning shortly after clearing with no change in driving conditions -- active mechanical fault rather than a stored historical code; the turbocharger system requires inspection before continued operation

Frequently Asked Questions

What is the difference between P2262 and P0299 on the 6.7L Cummins?

P0299 is a general underboost code that indicates boost pressure is below the commanded target. It can be caused by a boost leak, a sensor fault, a worn turbo, or an actuator problem. P2262 is more specific -- it indicates a mechanical failure in the turbo boost system after the ECM has ruled out sensor errors. On the 6.7L Cummins, P2262 almost always means the VGT actuator has failed or the turbo vanes are stuck, while P0299 may still be caused by a boost leak or a sensor.

Can I program a replacement 6.7L Cummins turbo actuator myself?

Some replacement actuators for the 6.7L Cummins are pre-calibrated and install without additional programming. Others require an actuator calibration procedure through the ECM using a scan tool with the appropriate Cummins calibration function. Confirm whether the specific actuator being installed requires programming before ordering -- the product listing and instructions specify which procedure applies. An unprogrammed actuator on a truck that requires calibration will not restore correct VGT function even if the actuator motor is operating correctly.

Does cleaning the VGT vanes fix P2262?

Cleaning the VGT vanes can resolve P2262 when carbon deposits are causing the vanes to stick and prevent the actuator from reaching commanded positions. This is more likely to be the root cause on trucks with high idle time, short-trip use, or extended low-load operation that does not generate enough exhaust heat to burn off deposits naturally. If the actuator motor and position sensor test within spec electrically but vane movement is restricted, cleaning is the appropriate repair before replacing the actuator itself.

Bottom Line

A 6.7L Cummins P2262 points to a mechanical failure in the variable geometry turbocharger system -- most commonly a failed VGT actuator, sticking vanes, or a worn turbocharger on high-mileage engines. The actuator is the correct first repair on most 6.7L Cummins P2262 diagnoses. Confirm the failure with a scan tool monitoring actuator position feedback before ordering parts. On a truck where the turbo itself has failed or where a power upgrade is planned, a complete turbocharger replacement resolves P2262 and raises the boost ceiling in a single repair.