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Thread: E67 ECMs Listing

  1. #1
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    Default E67 ECMs Listing

    For the Gen IV engines, it seems that one of the better options to use is an E67 ECM. Specifically, it allows you to keep the cruise control without needing to have a BCM. I also believe that the E67 can be used with either a manual transmission, 4 speed auto or a 6 speed auto (depending on the OS your trying to use). To help out, I would like to fill in the blanks on which vehicles came with E67's from the factory.

    Note: I tried to break this down by the early E67's and the 2009+ E67's [2009+ E67's have a higher {B4001} Injector Flow Base (7.99999 increased to 15.999998 grams/sec)]

    Here's my stab at a list:

    2006-2008
    CTS-V - 2006+ (LS2 (6.0L)
    Hummer H3 - 2008 (LH8 (5.3L))
    LS4 FWD (2007 MOnte Carlo, 2007-2008 GP GXP, 2007-2008 Impala SS, 2008 LaCrosse Super Sport)
    TB - 2007-2008 (LH6 (5.3L))
    TBSS - 2007-2008 (LS2 (6.0L))

    2009+
    Camaro - 2012+ (LSA (6.2L)
    Colorado / Canyon - 2009 (LH8 (5.3L)); 2010-2012 (LH9 (5.3L))
    Corvette - 2009+ (LS9 (6.2L))
    CTS-V - 2013+ (LSA (6.2L))
    Hummer H3 - 2009 (LH8 (5.3L))
    Impala SS - 2009 (LS4 (5.3L))
    TB -2009 (LH6 (5.3L))
    TBSS -2009 (LS2 (6.0L))

    Not sure I got the LS4 stuff correct or not. Also would like to verify which transmission were available. I know the TB, TB SS, Colorado/Canyon only got 4 speed autos. Same thing for the front wheel drive. Not quite as sure about the CTS-V's.

    As always, thanks for your help in filling in the blanks.

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    What year did the E67 start in production? I think I saw some listings saying 2006 ... but others are showing like 2007. Not sure if it matters, but some of the confusion is regarding the front wheel drive LS4 cars. One listing shows E40 for the first years, then converting over to E67's.

    Also, did newer CTS-V's come with 4 speed auto's or straight to 6 speeds?

    Thanks,

  3. #3
    Forum tyhee Site Admin GMPX's Avatar
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    2006 would be the first year. I don't think the 2006 FWD LS4 cars had an E67, they switched in 2007.
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    Quote Originally Posted by GMPX View Post
    2006 would be the first year. I don't think the 2006 FWD LS4 cars had an E67, they switched in 2007.
    Thanks for the info.

    One other area I need help on .... LSA cars, which transmission did they come with. Either the CTS-V or the Camaro? The current ZL-1 Camaro shows you can get a 6L90E with it. Did the 1st year Camaro offer an auto? The current CTS-V shows the new 8 speed auto (not an E67 though).

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    Well, did some more looking, and it looks like CTS-V got the LSA in 2009. And you could have either a TR-6060 or a 6L90E. Camaro of course got it in 2012 (same basic transmission options).

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    Does anyone have the pinout (wiring diagram) for any of the LSA cars (CTS-V or Camaro)? I have studied the Trail Blazer SS and found the cruise control inputs on the X1 connector (2008 wiring diagram). Looked over an early E67 CTS-V (LS2) and it didn't quite match up with what the TB SS had. The CTS-V had two pins (CPP switch and Cruise Control Switch) which showed on the wiring diagram to be coming from the "Cruise Control System" but it doesn't show the Resume/Accel or Set / Coast inputs. My guess is that the BCM gets the cruise switch inputs and passes those to the E67.

    Interestingly enough, I looked at 2009 Impala SS (LS4), and it did not show any cruise signals coming to / from the ECM. Pretty sure that the front wheel drive cars had cruise inputs coming from the BCM. On the smaller front wheel drive cars (Cobalt / G6) that I have looked into the cruise inputs go through the BCM to the ECM.

    My guess for the Camaro since it uses both the E38 and E67, is that the cruise goes through the BCM. That would probably mean that the LSA in the CTS-V is setup similarly.

    Does anyone have a 2009+ Colorado wiring diagram? I was would like to verify that it is similar to the TB SS.

    Thanks,

  7. #7
    Lifetime Member DURAtotheMAX's Avatar
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    Colorado uses a resistor-ladder cruise input. So its a single input pin that reads voltages from the cruise control switch. So you'll have to build a mini resistor ladder with push-buttons on your dash in order for it to work.

    The only E67 OS that has multiple discrete inputs for cruise (IE, 3 separate simple on/off 12v inputs) is the TBSS.
    2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison
    12.9s @ 108 mph

    many thanks to Ross and Paul

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    Ben,

    Thanks for the information on the Colorado. I wonder if that is what is used by the CTS-V's then too???? From what I saw, there were 2 inputs, but not the seperate inputs like on the TBSS. Do you happen to have a wiring diagram showing the resistor ladder? This might prove useful for those trying to use OS's other than TBSS.

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    Quote Originally Posted by turbo_bu View Post
    Ben,

    Thanks for the information on the Colorado. I wonder if that is what is used by the CTS-V's then too???? From what I saw, there were 2 inputs, but not the seperate inputs like on the TBSS. Do you happen to have a wiring diagram showing the resistor ladder? This might prove useful for those trying to use OS's other than TBSS.
    06-07 CTS-V with the E67 and 6.0 is discrete-wired to the ECM, using a resistor ladder in the cruise control switch.

    2008+ with the supercharged 6.2, cruise control is all GMLAN.
    2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison
    12.9s @ 108 mph

    many thanks to Ross and Paul

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    Gotcha - thanks again for all your help Ben. This matches up with what I was seeing in a 2007 CTS-V wiring diagram. I saw two pins with cruise control in their description, but nothing else mentioned. This explains why. Also explains that the newer LSA stuff is now done through the BCM like the other GM vehicles.

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