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Toyota
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1994
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Celica L4-132 2164cc 2.2L DOHC (5S-FE)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Engine Control System
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DTC 27
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Diagnostic Procedure
Diagnostic Procedure
DTC 27 Sub Heated Oxygen Sensor Circuit
DIAGNOSTIC PROCEDURE
1.
Are there any other codes (besides Code 27) being output?
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If Yes, Go to relevant diagnostic trouble code chart.
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If No, replace sub oxygen sensor.