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.
1988 Toyota Camry Base, StandardFACTORY OEM SERVICE PROCEDURE
Camry 2VZ-FE (Calif. Models)
- Inspection is required when trouble code No. 27 exists. Clear trouble codes. See CLEARING TROUBLE CODES under DIAGNOSIS & TESTING in this article. Warm engine to normal operating temperature.
- Drive vehicle between 50 and 62 MPH for at least 5 minutes in 4th or 5th gear (M/T) or "D" range (A/T).
- On all models, fully depress accelerator pedal for at least 2 seconds.CAUTION: DO NOT exceed 62 MPH or trouble code will be canceled.
- Stop engine and turn ignition off. Repeat previous steps and note if trouble code No. 27 exists again. If trouble code exists again, check sub-oxygen sensor circuit for continuity, shorts or grounds. Replace sub-oxygen sensor if circuit is okay.
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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