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ls1 maf to 5.3?

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Old Dec 22, 2009 | 01:40 AM
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Default ls1 maf to 5.3?

Is anyone aware if the ls1 maf is able to be used on a 5.3l. Im doing a swap, and i was looking at a cheap stock trans am maf. 5.3 is a 2000, ls1 is a 1999.
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Old Dec 22, 2009 | 07:18 AM
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Truck maf has a intake temp sensor in it ls1 maf dosent also different connectors due to that
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Old Dec 22, 2009 | 07:30 AM
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I would think ultimately it would depend on which harness/pcm your're using.
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Old Dec 22, 2009 | 11:16 AM
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Yes you can use the MAF. You may ahve to update the PCM tables though. Anyone know if this is true or not?
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Old Dec 22, 2009 | 12:09 PM
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You wouldn't have to update the maf tables but you would have the rewire the 5.3 harness to accept the ls1 maf and ad a plug for an intake air temp sensor. For what your doing just buy a truck maf
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Old Dec 22, 2009 | 02:32 PM
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Yeah... it just came in today and the ls1 maf doesnt have a connector. Im using a 5.3 harness. Thanks for the help everyone!
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Old Dec 22, 2009 | 03:11 PM
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Truck maf is bigger too
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Old Jan 5, 2010 | 04:16 PM
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Alright I bought a sopposed 5.3 maf because the ls1 maf doesnt work. And now the new maf that I bought doesnt connect to the harness either. The harness I have is said to be a 2000 silverado harness and the maf is said to work on all 5.3s from 2000+. Maf id- 25168491 Ecu id- 12200411

Here is the maf ad on ebay..

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
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Old Jan 5, 2010 | 05:02 PM
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The MAF in the ebay picture is the correct one for a 5.3 truck.

You're either looking at the wrong connector or your harness has been modified.
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Old Jan 5, 2010 | 07:19 PM
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Originally Posted by Speartech
The MAF in the ebay picture is the correct one for a 5.3 truck.

You're either looking at the wrong connector or your harness has been modified.
Thats what I assumed, ill do some more checking on the harness...
Thanks man
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