petehall12 Posted September 21, 2023 Share Posted September 21, 2023 The engine is showing a 8-6 and a 8-9 code. Could the eup be causing the the 8-9 code? Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/ Share on other sites More sharing options...
Joey Mack Posted September 21, 2023 Share Posted September 21, 2023 8-9 is related to all of them.. don't buy any pumps yet, check the condition of the wire harness.. I Believe the ECM has only 2 plugs. I know I posted the pin out diagram for them on other threads. And a couple others have too. I think pin 11 + 12 in the J-2 connector are the comm lines. 1-3 are on one line and 4-6 is on the other. To me, this is likely a wiring issue and not an EUP issue.. due to the 8-9 code... Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539099 Share on other sites More sharing options...
petehall12 Posted September 21, 2023 Author Share Posted September 21, 2023 Thanks jojo Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539122 Share on other sites More sharing options...
Joey Mack Posted September 21, 2023 Share Posted September 21, 2023 I hope these pictures help you.. You can check the wires for shorts and damage.. Do you know how to read the wire codes? Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539123 Share on other sites More sharing options...
Joey Mack Posted September 21, 2023 Share Posted September 21, 2023 (edited) I really wish I knew why the pictures would post in the " Batman Mode''... I'm sorry.. i guess you can tilt the laptop to read it.. Edited September 22, 2023 by Joey Mack Pore cell fone sperring Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539126 Share on other sites More sharing options...
R.E.D Posted September 22, 2023 Share Posted September 22, 2023 The vmac 3 service manual is available for downloads from mack e media for free.Part number 8-211. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539155 Share on other sites More sharing options...
petehall12 Posted September 24, 2023 Author Share Posted September 24, 2023 On 9/21/2023 at 7:44 AM, Joey Mack said: 8-9 is related to all of them.. don't buy any pumps yet, check the condition of the wire harness.. I Believe the ECM has only 2 plugs. I know I posted the pin out diagram for them on other threads. And a couple others have too. I think pin 11 + 12 in the J-2 connector are the comm lines. 1-3 are on one line and 4-6 is on the other. To me, this is likely a wiring issue and not an EUP issue.. due to the 8-9 code... Jojo Went through the wiring and everything looks good now I am only getting a 8-6 code. How much of a big deaL is it if I change the eup and it might be awhile before it gets programmed Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539206 Share on other sites More sharing options...
Joey Mack Posted September 24, 2023 Share Posted September 24, 2023 well, #6 is not bad, just have the turbo pipe in the way.. How about pulling it and swapping it with an easy one,,, say...... #2 and see if the code follows it.. if it does replace the EUP and the orings on the swapped EUP, and put the swapped one back in its original hole, to keep the cal. code the same.. Jojo P.S. USE NEW EUP BOLTS, THEY TORQUE TO 60 lbft. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539207 Share on other sites More sharing options...
petehall12 Posted October 1, 2023 Author Share Posted October 1, 2023 On 9/24/2023 at 4:31 PM, Joey Mack said: well, #6 is not bad, just have the turbo pipe in the way.. How about pulling it and swapping it with an easy one,,, say...... #2 and see if the code follows it.. if it does replace the EUP and the orings on the swapped EUP, and put the swapped one back in its original hole, to keep the cal. code the same.. Jojo P.S. USE NEW EUP BOLTS, THEY TORQUE TO 60 lbft. You wouldn’t happen to know what size those bolts are? Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539536 Share on other sites More sharing options...
Joey Mack Posted October 1, 2023 Share Posted October 1, 2023 the thread is m10x1.50.. they are allen headed cap screws. the length is around 60mm.. Grade 10.9.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539537 Share on other sites More sharing options...
petehall12 Posted October 1, 2023 Author Share Posted October 1, 2023 3 hours ago, Joey Mack said: the thread is m10x1.50.. they are allen headed cap screws. the length is around 60mm.. Grade 10.9.. Thanks again JOJO. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539547 Share on other sites More sharing options...
petehall12 Posted October 8, 2023 Author Share Posted October 8, 2023 (edited) On 9/24/2023 at 4:31 PM, Joey Mack said: well, #6 is not bad, just have the turbo pipe in the way.. How about pulling it and swapping it with an easy one,,, say...... #2 and see if the code follows it.. if it does replace the EUP and the orings on the swapped EUP, and put the swapped one back in its original hole, to keep the cal. code the same.. Jojo P.S. USE NEW EUP BOLTS, THEY TORQUE TO 60 lbft. Yeah #6 wasn’t too bad changed it out this morning. The motor sure is running better the miss seems to be gone. how important is it to get to a dealer to have it programmed? Edited October 8, 2023 by petehall12 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539900 Share on other sites More sharing options...
Joey Mack Posted October 8, 2023 Share Posted October 8, 2023 It is important, but the engine will learn it. The bigger issue is finding someone who can enter the cal. code.. Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-539909 Share on other sites More sharing options...
petehall12 Posted October 11, 2023 Author Share Posted October 11, 2023 On 10/8/2023 at 6:04 PM, Joey Mack said: It is important, but the engine will learn it. The bigger issue is finding someone who can enter the cal. code.. Joey I haven’t had the cal code entered yet but after about a hour of running with the new eup the random miss has gone away and my turbo is now working like it is supposed to. Thanks and also that bolt length was 40MM I appreciate all your help on this situation. I am sure I will be asking more questions soon. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73329-2004-ami-370-eup-questions/#findComment-540022 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.