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2006 lq4 ecu dbw questions

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Old 05-03-2011, 02:31 AM
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Default 2006 lq4 ecu dbw questions

I recently got a 2006 lq4, it came from a 2006 H2 Hummer. It came with complete including dbw tb and stock wiring harness, minus the tac, pedal, and o2 sensors.

I have a computer with the service numbers 12586242 - hardware number 12583660 on it which i looked up to be for a- 2004 C/K-TRUCK, LM7. It looks like this ecu will not work with dbc and I have read about issues with the dbw in the different years, even the 2003-2004 from the 2005-2006.

When I got this computer I was told it was from a Hummer H2 and by the looks of it, is this saying it came in the trucks and the lm7 that year? So this one could have actually been from the H2 just would be a 2004 not 2006?


I am wondering what tac and pedal I should search for to make this set up from the 2006 lq4 work with this ecu which looks like it was from a 2004? (or is it best off to find another computer that would be from the same year?)

Last edited by welldonecj7; 05-03-2011 at 02:40 AM.
Old 05-03-2011, 11:39 AM
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242 is a drive by wire computer. There were green/blue pcms used for drive by cable but they were only used on 2004 GTO and some express vans from that same year.
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Old 05-03-2011, 01:57 PM
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You can use 12589161 for DBC, it is a DBW ECU but has support for IAC and TPS. This ECU can be found in Express Vans and some trucks
Old 05-03-2011, 04:44 PM
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So will the computer I have not work with the 2006 dbw and harness? I understand that if I want dbc then the other computer is needed but if I keep dbw will this computer work with the 2006 Tb and harness and which pedal and tac computer would I need.
Old 05-04-2011, 06:45 AM
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The computer that you have will work for dbw.
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Old 05-04-2011, 09:47 AM
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Originally Posted by welldonecj7


I am wondering what tac and pedal I should search for to make this set up from the 2006 lq4 work with this ecu which looks like it was from a 2004?
I would just get a TAC and pedal from a 2004-5 Chevy truck. They're easy to come by and fairly inexpensive
Old 05-04-2011, 10:07 AM
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Awesome thanks that's what I was wondering as far as maf will any 2003-2006 work just fine?
Old 05-14-2011, 12:14 AM
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Should any of those maf work or would it need to be from a 04 to match the computer
Old 05-15-2011, 07:55 PM
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anyone know if any of the truck maf will work or if it has to match the year of the computer?
Old 05-15-2011, 08:52 PM
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Any 1999 through 2005 5 wire MAF should work
Old 05-15-2011, 11:44 PM
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Awesome thank you I just wanted to make sure so I didn't end up having compatibility problems



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