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  1. 03-24-2006, 04:01 PM #1
    hrsepwrfrk
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    tach and speedo not working

    Hey im new to the LS1 scene...just recently bought a 98 trans/am and when i bought it the speedo and tach didnt work...any ideas? they are just stuck at 0
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  2. 03-26-2006, 02:49 AM #2
    hrsepwrfrk
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    anyone at all?
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  3. 03-26-2006, 09:33 AM #3
    2001NBMZ28
    2001NBMZ28 is offline
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    Well, thumbing through my helms it says the first thing you need to do is an IPC (instrument panel check) with a scan tool. For example under the tach diagnosis it says to sweep the tach with the tool, if it doesn't sweep then replace the instrument cluster. Speedo diagnosis is a little more complicated, but you get the idea. The tool will also read any codes present. Other than checking all your fuses and the connector/wiring to the panel don't know what else to tell you. Hope this helps...
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  4. 03-26-2006, 10:03 AM #4
    2001NBMZ28
    2001NBMZ28 is offline
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    Just thought of something else, have you tried resetting the PCM?
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