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obdI and obdII

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Old 06-10-2009, 06:21 PM
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obdI and obdII
I have a friend that has an lt1 from an unknown year 94-96 impala/caprice ect and he is wanting to know if it is obdI or II he still has all the wiring with the motor. What is a place to check?
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Old 06-10-2009, 06:50 PM
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If it has a crank sensor in the bottom of the timing cover...it is OBDII, if not then it's OBD I.
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Old 06-11-2009, 06:54 AM
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Also check for the O2's if he has 2 only then OBDI and if he has 4 (2 before cat and 2 after) then OBDII.
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