Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
300ZX Turbo
Boost sensor is located in left rear corner of engine compartment. Disconnect sensor connector and hose. Connect 12-volt battery and voltmeter across sensor connector terminals. See Fig 1. Voltage should be about 2.2 volts. Connect a hand-held vacuum pump to sensor hose fitting. Apply 14 Hg. vacuum at hose fitting. Voltage should be about 1.3 volts. If the voltage is not as specified, replace sensor.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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