P132B on RAM
Turbocharger/Supercharger Boost Control 'A' Performance Problem (manufacturer-specific)
P132B on RAM vehicles indicates turbocharger/supercharger boost control 'a' performance problem (manufacturer-specific). Au7o has documented this code across 1 RAM model — most commonly on 2500. P132B is a manufacturer-specific powertrain code, defined by Ford and similar makers as a Turbocharger/Supercharger Boost Control 'A' Performance Problem. The PCM commands a boost level via the boost control system (wastegate, solenoid, or vane actuator) and detected that actual boost did not match the commanded value. This usually means the engine is producing too little or too much boost, leading to reduced power, hesitation, or limp mode, and it should be diagnosed to avoid further driveability or turbo problems. Typical repair costs on RAM range from $450 to $1,900, depending on the specific model and root cause.
Common Causes of P132B
- •Faulty turbo/supercharger boost control solenoid or actuator
- •Wastegate or vane mechanism stuck, binding, or sticking
- •Boost or pressure sensor fault
- •Vacuum/boost line leaks or disconnected hoses
- •Intake or charge-air (intercooler) leaks
- •Wiring, connector, or electrical fault in the control circuit
- •Carbon buildup or mechanical turbocharger wear
P132B on RAM by Model
RAM 2500(1 issue)
- 6.7L Cummins VGT Turbo Actuator Failure2007-2024
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.
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View P132B across all makes →Frequently Asked Questions
What does P132B mean on RAM?▼
P132B stands for "Turbocharger/Supercharger Boost Control 'A' Performance Problem (manufacturer-specific)." P132B is a manufacturer-specific powertrain code, defined by Ford and similar makers as a Turbocharger/Supercharger Boost Control 'A' Performance Problem. The PCM commands a boost level via the boost control system (wastegate, solenoid, or vane actuator) and detected that actual boost did not match the commanded value. This usually means the engine is producing too little or too much boost, leading to reduced power, hesitation, or limp mode, and it should be diagnosed to avoid further driveability or turbo problems. On RAM specifically, this code is documented across 1 model.
What causes P132B on RAM vehicles?▼
Common causes on RAM: Faulty turbo/supercharger boost control solenoid or actuator, Wastegate or vane mechanism stuck, binding, or sticking, Boost or pressure sensor fault, Vacuum/boost line leaks or disconnected hoses, Intake or charge-air (intercooler) leaks. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P132B on a RAM?▼
Repair costs on RAM range from $450 to $1,900, depending on the specific model and root cause.
Which RAM models have P132B documented?▼
Au7o has documented P132B on 1 RAM model: 2500.