Medium severity
P0046Incorrect operation or range of operation of the boost control valve
Part
Boost pressure control valve
Part price
$45
At a workshop
$83
You save
$38
How to read code P0046
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
46
Fault number
Specific fault within the subsystem
Symptoms
- Engine sputtering during hard acceleration
- Turbocharger over- or under-boosting
- Loss of engine power
Possible causes
- Ignition fouling in the turbocharger
- Leakage in the boost control actuator system
- Faulty boost control solenoid
Diagnostic steps
- 1Check the integrity of the boost pressure spools
- 2Inspect the turbine shaft fluid flow
- 3Verify the set and actual boost pressure parameters
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Frequently asked questions about P0046
What does code P0046 mean?
P0046: Incorrect operation or range of operation of the boost control valve.
What are the symptoms of code P0046?
Engine sputtering during hard acceleration; Turbocharger over- or under-boosting; Loss of engine power.
What causes code P0046?
Ignition fouling in the turbocharger; Leakage in the boost control actuator system; Faulty boost control solenoid.
Can I drive with code P0046?
SAFE TO DRIVE – The fault does not immobilise the car, but diagnose it as soon as possible.
How much does it cost to fix code P0046?
The part (Boost pressure control valve) costs about $45, and a mechanic’s labour about $38.
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