Pressure Check
- Connect a 3-way union to boost compensator pressure hose and install a pressure gauge to it. While driving with engine running at 2,500 RPM or more (accelerator pedal fully depress in first gear), check the turbocharging pressure. Standard pressure is 7.7-9.7 psi (.54-.68 kg/cm2 ).
- If pressure is less than specification, first check intake air and exhaust systems and relief valve for leakage. If there is no leakage, replace turbocharger assembly. If pressure is above specification, first check if the actuator hose is disconnected or cracked. If not, replace turbocharger assembly.