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Message: [QUOTE="me2, post: 321166, member: 3825"] I'm getting lots of questions, so rather than answer them individually, I will answer them here. [B][COLOR="Red"]What ECM am I using ?[/COLOR][/B] Its a CM2100 from an 08 truck. This engine originally came with a CM2200 ECM, but EFI Live doesn't handle those yet, so I'll use the CM2100 ECM until then. [B][COLOR="Red"]How do I wire the ECM into the truck ?[/COLOR] [/B] The CM2100 ECMs have 2 connectors. One handles all the engine connections, like sensors, injectors and those sorts of things. The other connector is the "OEM" stuff, ie the truck builder. This is usually Dodge, Freightliner, etc., but in this case its where I connect the engine to my truck. My local Cummins dealer got me a connector ($55) and pins to plug into the OEM port. The OEM and engine ports look the same, but they are keyed differently. I think the Engine port has a "5" key and the OEM port has a "6" key. If you are ordering one and need to know, if you look into the connector beside the key you can see it printed there. Having separate OEM and Engine ports on the ECM is new. When I wired my 5.9 into old truck, the engine wiring harness itself had a connector (C130) which was where everything connected in. [B][COLOR="Red"]Does the ECM need anything from the Dodge truck to run the engine ?[/COLOR][/B] No, sort of. Technically the Dodge Cummins engines are a complete stand alone unit with their ECM. However, some trucks have a security system in them, ie a SKIM (module) and when it is supposed to be there and isn't, the ECM shuts down the engine after it has run for 10 seconds. Luckily this functionality can be disabled with EFI Live. And I'll be doing that if my ECMs have it enabled. Other than a SKIM, all the engine needs are power to the correct pins and an accelerator (throttle) signal. There are a number of ways to do the throttle signal, one of which is to use a Dodge accelerator pedal assembly. For various reasons I will not be doing that. [B][COLOR="Red"]How are you going to get the Ford transmission controller to talk to the Cummins engine ?[/COLOR] [/B] There are 2 answers to this question. Answer 1) I'm not going to use the Ford transmission controller. I am going to use a custom controller. I am doing this because I want the transmission to do some things that the Ford controller doesn't support. I'll get into this later in the swap. 2) I think its pretty feasible to get the Ford transmission controller to work behind the Cummins engine. I've taken a really good look at the schematics for the 2011 Fords and basically its just a matter of sending the right CAN messages to the Ford controller and it would work. Having said that, the message formats used by the Cummins(Dodge) ECM and the Ford ECM are different. It does not appear that Ford supports the J1939 format, whereas the Cummins (Dodge) ECM has a mixture of J1939 and proprietary formats. However, even though the formats are different, the necessary data appears to be all there. However, one can build a microcontroller that sits between the Cummins engine and the Ford transmission controller that gets the data the TC needs from the ECM and converts it into the Ford format and sends it to the ECM. So it is very possible to do this swap using the Ford TC. [B][COLOR="Red"]I've heard that Ford is having trouble with the 6R140. Why are you using it in a swap ?[/COLOR] [/B] Ford is having shift calibration issues with the 6R140. Under certain conditions some of the solenoids are shifting some of the clutches sooner or later than they should be, which is leading to missed shifts or shift flare. Because I am using a custom TC and tuning it myself, I should be able to tune around any shift calibrations issues that Ford may be having. [B][COLOR="Red"] Will your truck be emissions compliant ?[/COLOR][/B] I'm not an expert, but most jurisdictions allow an engine swap provided the new engine is the same emissions age or new than the old one. The Cummins 6.7 is emissions certified until 2012. My specific engine was used in a MY 2010 truck. My truck is a MY2008. If my Cummins 6.7 was equipped with all its emissions equipment, my truck would have no problem passing an emissions test anywhere in the country. Obviously the twin turbo setup negates passing the emissions test in some jurisdictions. But nothing stops me from putting the engine back to stock should I need to. I will be deleting the EGR and DPF for the time being. I may install them at a later date. FWIW, I could also have probably swapped in a MY2007.5 Cummins 5.9 into my truck, its an early Job 1 truck. However, it would probably be a lot easier to convince an inspector that the swap is compliant if the new engine (6.7) has a DPF like the old on (6.4) did. [B][COLOR="Red"]How am I going to handle the OBDII scanning ?[/COLOR][/B] My truck will have 2 OBDII scan ports. One for the chassis and the other for the engine. The Ford ECM will stay installed in my truck as it is needed to handle certain dash and body functions. It would be a big job to remove it and replace it with a custom "body" computer. There were a bunch of mechanical questions too, but I'll answer them as we go because pictures will make it apparent what I am doing. Pictures don't tell much of a story when it comes to wiring and software. [/QUOTE]