Salpolit Posted April 24, 2023 Share Posted April 24, 2023 Hi everyone, I have a CV713 Mack that originally came with an E7 ETECH engine. Along the way, the whole engine was changed out with a Frankenstein parts bin engine before I bought it. The long and short of it is, the ECM on this engine fried out completely, and no data on it is recoverable. My Mack dealer is unable to help, as they cannot verify exactly what engine was put in the truck as they claim Mack/Volvo now requires both the truck VIN and the engine numbers before they can release a tune. I spoke with the previous owner, who informed me the ECM that was on the Frankenstein engine is the original ECM that came with the truck, so by all rights we should be able to get it programmed by the dealer with just the VIN, but Mack/Volvo is making that impossible now. The dealer was able to tell me the truck came with an E7 ETECH 400 engine. I am in a bit of bind here, as this truck is completely dead in the water and the dealer is basically telling me to pound sand. Any ideas? I did already purchase a reman ECM that just needs to be tuned, does anybody here offer any type of ECM programming services? Thank you Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/ Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 The trucks vin should tell them what ever it was born with ! just saying! it would still be usable with that info in my mind!Order the correct ecu for the vin and go from there! It has to be combat-able with the vehicle ecu ! Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529921 Share on other sites More sharing options...
Joey Mack Posted April 25, 2023 Share Posted April 25, 2023 Is the part number on the EECU still readable? The base program in an EECU will let it run.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529922 Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 Correct Joe the base program will run the truck 250 hp is better than no hp !He has odviously got hook up with a parts guy that is clueless ! And unable to work with the Volvo trash parts system the info is there it’s just buried! Or swept into a corner in the program somewhere! Just got to know how to get it! Note the reman ecu numbers start with an X! I believe! If they search with out the x it will show no stock! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529924 Share on other sites More sharing options...
Joey Mack Posted April 25, 2023 Share Posted April 25, 2023 12MS/14MS..??? Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529926 Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 1 minute ago, Joey Mack said: 12MS/14MS..??? X 12ms/14 bla bla If they search for new they won’t find anything! Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529927 Share on other sites More sharing options...
Salpolit Posted April 25, 2023 Author Share Posted April 25, 2023 Thanks guys, the ECM that originally came in the truck is 12MS523M and I purchased the same model number reman ECM. I’ll go back to the dealer and have them give it another go and press the issue further. Wish me luck! Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529932 Share on other sites More sharing options...
Salpolit Posted April 25, 2023 Author Share Posted April 25, 2023 Would somebody be able to provide me with a VIN number of a 2003 Mack CV713 with an Etech 400? Dealer is saying if they get a standard Vin number they can most likely get the tune released. Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529940 Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 There Are several guys here with that knowledge hang out for a bit Mackpro or someone should chime in! Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529941 Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 1 minute ago, fjh said: There Are several guys here with that knowledge hang out for a bit Mackpro or someone should chime in! Question Is the truck standard or auto? Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529943 Share on other sites More sharing options...
Salpolit Posted April 25, 2023 Author Share Posted April 25, 2023 Manual 8LL Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529946 Share on other sites More sharing options...
fjh Posted April 25, 2023 Share Posted April 25, 2023 4 hours ago, fjh said: Question Is the truck standard or auto? K Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529960 Share on other sites More sharing options...
880joe Posted April 26, 2023 Share Posted April 26, 2023 Why couldn't they use your vin# instead of some random vin#. Seems to me like if they could program it off another vin they could do it off of the original vin Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529991 Share on other sites More sharing options...
fjh Posted April 26, 2023 Share Posted April 26, 2023 1 hour ago, 880joe said: Why couldn't they use your vin# instead of some random vin#. Seems to me like if they could program it off another vin they could do it off of the original vin For one thing the program will not let you program a truck with miss matched ECU/ VECU The progam compares the two before it will flash the data I beleive! I am no guru on this by any means but I know we tried reflashing donor ECUs It don't work! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-529996 Share on other sites More sharing options...
Joey Mack Posted April 26, 2023 Share Posted April 26, 2023 I wonder if V-Mac III systems are even taught any more at MackVo? I used to use Mack software with PTT, to flash a V-Mac III. EECU. There was a handful of steps.. Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530006 Share on other sites More sharing options...
Popular Post 67RModel Posted April 26, 2023 Popular Post Share Posted April 26, 2023 I know this is non constructive to this thread but why are Mack ECMs essentially bricks until the dealer does something with them? Why is nobody in the aftermarket able to program them? I know there are dozens of reputable outfits and people that will take a Detroit DDEC III, or DDEC IV ECM of about the same era as this truck (DDEC IV) and make the engine do whatever you want it to do. It seems like with with Mack you are painted into a corner if something like this comes up..... 1 2 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530007 Share on other sites More sharing options...
880joe Posted April 26, 2023 Share Posted April 26, 2023 Would the standard vin that dealer is wanting not going to be a mismatch also? Is this truck a glider originally if not then why would you be able to use a random vin and not the original the new ecm shouldn't have a vin# assigned to it 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530010 Share on other sites More sharing options...
Joey Mack Posted April 26, 2023 Share Posted April 26, 2023 There would be a 'G' or GK in the vin.. Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530011 Share on other sites More sharing options...
fjh Posted April 26, 2023 Share Posted April 26, 2023 When you buy a reman ecu the truck vin is wiped clean until you install / download it! There is base hp 250 in there but that’s it! It then teams up with the vecu to finish the match! Is the way I understand it! agian not a guru on this electronic magic stuff! Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530027 Share on other sites More sharing options...
Joey Mack Posted April 26, 2023 Share Posted April 26, 2023 I remember having to wait for Mack to authorize an EECU dowlnoad.. There was a confirmation number that had to be entered, to get a green light to continue. we would download what was on the existing EECU, and save it to a file, then use that file within V-Mac programming, combined with PTT, and flash the EECU.. (Before PTT we could use Mack software alone to get the job done), Then when the flashing was complete and confirmed through PTT, I would go in and look at the list of parameters, and re-set the owners settings back to original. So to the guys that ask if MackVo has an after market set-up... I dont know, and I doubt it... just my F'd up opinion.. Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530028 Share on other sites More sharing options...
fjh Posted April 27, 2023 Share Posted April 27, 2023 At first you had to do a read and save!They simplified it later you just click on a link!now they simply hide everything so you have to buy a new truck 😀 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530030 Share on other sites More sharing options...
Joey Mack Posted April 27, 2023 Share Posted April 27, 2023 Yeah what FJH said... Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530031 Share on other sites More sharing options...
Solution 880joe Posted April 27, 2023 Solution Share Posted April 27, 2023 Check with Winrock Truck Parts in Oliver Springs TN they may be able to help you with programming your new ecm 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530032 Share on other sites More sharing options...
JoeH Posted April 27, 2023 Share Posted April 27, 2023 On 4/25/2023 at 8:37 AM, Salpolit said: Would somebody be able to provide me with a VIN number of a 2003 Mack CV713 with an Etech 400? Dealer is saying if they get a standard Vin number they can most likely get the tune released. GIVE THEM YOUR VIN NUMBER, WTF???? Dealer incompetence is ridiculous... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530047 Share on other sites More sharing options...
Joey Mack Posted April 27, 2023 Share Posted April 27, 2023 I sometimes wonder if Volvo, stopped teaching parts guys how to look up Mack parts? And now the parts counter is all new people with no knowledge, just Volvo training, (sculpting).. I experienced some of it in the service dept. When I tried to go back to Mack about 6 years ago.. Quote Link to comment https://www.bigmacktrucks.com/topic/72771-mack-cv713-etech-ecm-nightmare/#findComment-530053 Share on other sites More sharing options...
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