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1991 Bon Codes!!!

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Old 12-22-2009, 05:53 PM
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Default 1991 Bon Codes!!!

Hey im new here and im currently trying to figure out what codes 12 , 36 , 58 mean. Please if you read this and know them post please
Old 12-22-2009, 06:00 PM
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DTC - 12 No distributor reference pulse (diagnostic test active)

DTC - 36 MAF sensor error

DTC - 58 Trans fluid temp sensor circuit error (low voltage)
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Old 12-22-2009, 06:09 PM
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i was just wondering if you have any idea what could be wrong with my car if i have those three error codes
Old 12-22-2009, 06:28 PM
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Well, let'* do this from scratch. Just to make sure we are dealing with recent codes, we should clear them first. They could be old codes and are no longer current.

1. Disconnect battery cables.
2. Might as well clean them up good, now that you have them disconnected.
3. Reconnect.
4. Start car drive around and if you instantly get a light on. Check for new codes.
5. If light doesn't come on, your good to go.

You should always get a DTC 12. From what I have read.
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Old 12-22-2009, 09:29 PM
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Yes 12 lets you know its working
Old 12-22-2009, 09:42 PM
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Thanks for verifying that! Been a long time since I played with OBD1.
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