Ford OBD Trouble Code 21

Ford Problems For OBD Code 21

TPS sensor out of range

Neither rich nor lean condition detected from the oxygen sensor

V-TEC control solenoid

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

TPS signal fault

Check 21 OBD1 Code For All Ford Models

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