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.
1986 Toyota Pickup Base, 22-RTE, R151FFACTORY OEM SERVICE PROCEDURE
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 2500 RPM or more (accelerator pedal fully depressed in first gear), check the turbocharging pressure. Standard pressure is 7.7-9.7 psi (.54-.68 kg/cm2 ) for Camry and 5.8-7.7 psi (.41-.54 kg/cm2 ) for Pickup.
- 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.
Factory Service Tools
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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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