AZLK OBD Trouble Code 21

AZLK Problems For OBD Code 21

Oxygen sensor reporting too lean or too rich after 2 – 12 minutes with temp over 170° and RPM above 1500

V-TEC control solenoid

Main oxygen sensor fault (for ES300, SC300 and GS300 models)

Throttle position sensor (TPS) circuit fault, voltage high

TPS sensor out of range

Check 21 OBD1 Code For All AZLK Models

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