Hi guys, I'm pretty new to all this . I'm sure it been ask but
What is needed in the ecm to make 4x4 work on a l31 411 swap? It probably as easy as a segment swap, but any help or links to the info will help. Thanks
Hi guys, I'm pretty new to all this . I'm sure it been ask but
What is needed in the ecm to make 4x4 work on a l31 411 swap? It probably as easy as a segment swap, but any help or links to the info will help. Thanks
Are you going to use Coil On Plug ignition on the L31 like the LS engines do?
dave w
No, starting bone stock dizzy, spider injectiors, and all. I have another motor with 24x conversation, with a elderblock proflo, with rails and 42 lb injectors.
Some 2002 Express Van used the L31 engine and '0411 PCM.
Gearhead-efi link for stock 2002 L31 .bin files: http://www.gearhead-efi.com/Fuel-Inj...rPro-Bin-Files
dave w
Thanks, got that part, I have the stock bin file, 411 ecu, punouts and all the stuff needed. Only question I have is the 4x4 stuff in the tune. Express vans did not come 4x4. Looking for anyone that have done the 411 l31 swap on a 4x4 to see what needs to be changed in the tune.
I have not done the swap your asking information for.
I'm thinking 4WD Low is the concern. The transfer case will signal the PCM that 4WD Low is engaged, usually with a switch on the transfer case sending ground to specified pin on the PCM. The thinking I have is 4WD Low shift points for an automatic transmission will need to be compensated for.
Maybe "compare" a 4WD .bin file with the same Operating System (OS) as the L31 .bin file OS. Maybe your using OS 12216125? The link above has '02 Chevy K1500 5.3L OS12216125.bin
dave w
4WD.jpg
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