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dbw or dbc ecm and wireharness ??? how can i tell what it is??

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Old 07-31-2010, 05:20 PM
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Red face dbw or dbc ecm and wireharness ??? how can i tell what it is??

I have a 99 5.3 that i got with out the tb.i was wondering how could i tell if its a wire or cable setup.one thing i know is it has a tac module on the harness.The p/n. On the ecm is 12200411.Any who can help me out please chime in thanks in advance guys......
Old 07-31-2010, 06:46 PM
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99 should be DBC

0411 PCM goes either way, thats why its highly sought after

TAC module defaulted to DBW unless what you think is the TAC is actually another module

For sure ID method is to look at the TB connectors in the harness
Old 07-31-2010, 06:55 PM
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Concur with Pocket. 99 5.3 should have had an 896 PCM.
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Old 07-31-2010, 11:45 PM
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Old 07-31-2010, 11:54 PM
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Im pertty sure its a tac moudle theres a pic of one in a swap book that i have.looks like i have a bunch of parts put togeather to make a quick sale....mismatch wire harness,ecm,and engine....does anyone have a pic of the tb plug so i can c what i have got my self into...
Old 08-01-2010, 08:03 AM
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Take several pictures of your harness and post them for us to look at.
Old 08-01-2010, 08:37 AM
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http://www.thirdgen.org/techboard/lt...erchanges.html
Old 08-03-2010, 08:50 PM
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ya 411 can be either. If it has IAC ,and TPS it's cable if not its DBW.`



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