P2B94 Wastegate Position Sensor B Exceeded Learning Limit

P2B94 is set when the learned end position of electric wastegate B falls outside the window the engine computer accepts. Stellantis documents it on the 2025 Ram 1500 with the 3.0L Hurricane twin-turbo: bulletin 09-008-25 (Rev. B) lists P2B94 together with P0248 and a MIL, with weak turbo response, caused by wastegate rod retention clips installed incorrectly at the factory. The fix is to measure the clips with a caliper and replace any that exceed 13.70 mm on the actuator side or 17.78 mm on the housing side. Ford's patent US9243553B2 explains the principle behind the learn step: the controller moves the valve against a mechanical stop and stores the sensor value there, so play in the linkage moves the learned point. Side A uses P2B93.

Likely causes

Symptoms

• MIL on, often together with P0248
• Lack of acceleration from the turbo

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: static.nhtsa.gov, static.nhtsa.gov, patents.google.com.