P1510high severityPowertrain
Boost Pressure Control Circuit
on 1996 Lexus LS 400 4.0L V8 · RWD
What this code means
The ECM detected a fault in the boost pressure control circuit on turbo engines.
Symptoms
- CEL
- Overboosting
- Underboosting
- Reduced power
- Engine knock
Common causes
- Faulty boost solenoid
- Vacuum leak to wastegate
- Stuck wastegate
- Damaged wiring
Diagnostic steps
- Test boost solenoid
- Check vacuum lines
- Inspect wastegate
- Monitor boost levels
Repair notes
Replace boost control solenoid or wastegate.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1