C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ecu computer module for lt1 6 speeds

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Old Jun 6, 2012 | 11:09 PM
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Default ecu computer module for lt1 6 speeds

hey does any body know what the right computer module for the lt1 92 6 speeds, I recenly check my ecu and found that my car has the wrong ecu module, I dont know if the right one is 16163993 or the 16159278? the one i found in my car was 8899183 LC21 4907 DCA5123 GR 3.670 cg ecsm im lost can some please help me
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Old Jun 6, 2012 | 11:58 PM
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92-93 LT1 ECM is p/n 16159278

16163993 is for the (LT-5) ZR-1

Last edited by James93LT1; Jun 7, 2012 at 12:03 AM.
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Old Jun 7, 2012 | 12:46 AM
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thank you, so the trasmision auto and manual have nothing to do with the computer number
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Old Jun 7, 2012 | 03:35 AM
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Originally Posted by 28zoom
thank you, so the trasmision auto and manual have nothing to do with the computer number
Auto/Manual, same ECM.
Difference is in the MEMCAL.
6 Speed: BAFL
Auto: BDBK
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Old Jun 9, 2012 | 04:56 AM
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Originally Posted by 28zoom
hey does any body know what the right computer module for the lt1 92 6 speeds, I recenly check my ecu and found that my car has the wrong ecu module, I dont know if the right one is 16163993 or the 16159278? the one i found in my car was 8899183 LC21 4907 DCA5123 GR 3.670 cg ecsm im lost can some please help me
The ECM you have in your car is "CORRECT" ! That part # is the last "service number" for the original that was 16159278.

Now if you're interested in checking the PROM you can enter the VIN here or the CALPAK ID and see how current your PROM is presently:

http://tis2web.service.gm.com/tis2web
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Old Jun 9, 2012 | 05:34 AM
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my ecm is labelled 88999183 , at first i tought i had the wrong ecm because ever sinse i got my 92 i have been going into problem, so I open my ecm and the prom read delco bafL 3867 in a grey sticker on top of the blue plastic cover covering the prom but inside the prom it reads another number it reads delco 5224 in one of the hole of the blue plastic cover and in the other hole i see a #2171325 , i am lost I dont know if this prom is for my 6speed of for automatic IM LOST IM NOT SURE IF THIS IS THE RIGHT PROM FOR MY 92
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Old Jun 9, 2012 | 07:07 AM
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Originally Posted by 28zoom
my ecm is labelled 88999183 , at first i tought i had the wrong ecm because ever sinse i got my 92 i have been going into problem, so I open my ecm and the prom read delco bafL 3867 in a grey sticker on top of the blue plastic cover covering the prom but inside the prom it reads another number it reads delco 5224 in one of the hole of the blue plastic cover and in the other hole i see a #2171325 , i am lost I dont know if this prom is for my 6speed of for automatic IM LOST IM NOT SURE IF THIS IS THE RIGHT PROM FOR MY 92
I would say you're good to go. The "silver" label ID is a match and that is/should be your concern. You could get it scanned and check the "scanned ID" but every thing you've got "printed" on your current hardware is a match. You can confirm that using the tool I linked!!

You don't mention your "problem" or reason for your concern. Start a new thread with your "problem" I'd think likely the best "next move"!
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Old Jun 9, 2012 | 02:59 PM
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Originally Posted by WVZR-1
I would say you're good to go. The "silver" label ID is a match and that is/should be your concern. You could get it scanned and check the "scanned ID" but every thing you've got "printed" on your current hardware is a match. You can confirm that using the tool I linked!!

You don't mention your "problem" or reason for your concern. Start a new thread with your "problem" I'd think likely the best "next move"!
okay thanks
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Old Jun 10, 2012 | 05:18 AM
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the problem with my car is that it over heat and turn off the fan turn on but sometimes they don't , I change the water pump and the thermostat ,When I try to pull out the code at fist it dint came out even if the servise light was on , but then I finaly got the code and it said it was the coolant sensor so I change both of them just to make sure, the thermostat seem to be working well but I still dont know why the car overheats and turn off
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Old Jun 10, 2012 | 06:46 AM
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Originally Posted by 28zoom
the problem with my car is that it over heat and turn off the fan turn on but sometimes they don't , I change the water pump and the thermostat ,When I try to pull out the code at fist it dint came out even if the servise light was on , but then I finaly got the code and it said it was the coolant sensor so I change both of them just to make sure, the thermostat seem to be working well but I still dont know why the car overheats and turn off
I'd guess it's back to the "very basics" with an LT1 coolant system. Bleed the system properly, there's good reading to be found just using the search function. There's a few other checks that are required to confirm proper cooling system operation for an LT1.

Last edited by WVZR-1; Jun 10, 2012 at 06:59 AM.
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