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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

OBD Question

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Old 12-21-2006, 07:12 AM
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I have a 94z. Does this car have an OBD1 or an OBD2? How can you tell?
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Old 12-21-2006, 07:23 AM
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OBD1, OBD2 started in 1996
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Old 12-21-2006, 07:23 AM
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OBD1 is what you should have(if the car in original)

OBDII started in 1996 for F-Body
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Old 12-21-2006, 04:52 PM
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Apart from the change over years, you can tell by the diagnostic port (assuming the PCM hasn't been changed out). I think OBD1 is 12 pins, and OBD2 is 16..

Sara Lou
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