Boost Pressure
- Connect air pressure gauge in-line between fuel limiter and intake manifold hose. Use a "T" fitting and enough hose so gauge can be carried into passenger compartment.
- Ensure engine is at normal operating temperature. On M/T models, drive vehicle in 3rd gear at approximately 1500 RPM. On A/T models, place selector in position "2".CAUTION: To prevent damage to brakes, DO NOT apply brakes for more than 5 seconds.
- Press accelerator pedal to floor. On A/T models, DO NOT engage kickdown. Increase engine speed to 3000 RPM and apply brakes while keeping accelerator pedal down to obtain full load.
- Observe boost pressure on gauge. Maximum boost pressure should be 6.5-7.7 psi (.46-.54 kg/cm2
). If boost pressure is incorrect, adjust boost pressure. Go to next step.CAUTION: Ensure wastegate actuator rod does not turn when adjusting link rod. Damage to wastegate actuator can result.
- Remove seal and clip from wastegate actuator link rod. Turn actuator link rod to adjust boost pressure. See Fig 1 .
- Turning link rod 1 turn will change boost pressure approximately 0.4 psi (.03 kg/cm2 ). Turning link rod clockwise will increase boost pressure, counterclockwise will decrease boost pressure.