Does anyone know if a 2008 Impala 3900 V6 LZG uses the E67 or E38. So far GM lists the 12612384 a the correct ECM which is an E38. However this engine has DOD and VVT. An article I found says it uses an E67. However the harness has a third blue connector that would appear to be for an E67. I have a hard time believing that GM's listing is wrong (that it is indeed an E38). However what is this extra blue plastic harness connector for? Is there another module that plugs into it?
Unfortunately I don't have the donor car or any decent pictures from it.