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Isuzu
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1989
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I-Mark L4-1471cc 1.5L
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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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DTC 25
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Non-Turbo
Non-Turbo
DIAGNOSTIC CHART
Code 25 Diagnostic Chart:
NOTE:
Check vacuum switching valve connections. Ensure tight contacts, clear codes and recheck. If code 25 does not reappear, circuit is okay.