Vmac3 Posted October 20, 2021 Share Posted October 20, 2021 What is the boost pressure when the engine is under load? I have seen boost pressure sensors cause this issue as well. V 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-481602 Share on other sites More sharing options...
fjh Posted October 20, 2021 Share Posted October 20, 2021 On 10/12/2021 at 6:43 PM, theakerstwo said: That is what this site if all about to learn.I know i have learned alot that i did not know or forgot. Agreed 100 percent! Forgot is a big one for me these days!😡 Quote Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-481605 Share on other sites More sharing options...
MillennialTrucker93 Posted October 26, 2021 Author Share Posted October 26, 2021 Boost pressure under full load when the computer isn’t kicked is 30-35psi. When the computer kicks it cuts everything in half. Power/ boost everything. Me and the local dealer are leaning towards a phantom EUP issue that’s kicking the computer out under full throttle but not throwing any specific codes. A few hit’s on 2 injector eup’s but I guess you get what you pay for and can’t rely on anything rebuilt now a days. I can’t even buy EUP’s new. On 10/20/2021 at 7:05 AM, Vmac3 said: What is the boost pressure when the engine is under load? I have seen boost pressure sensors cause this issue as well. V Quote Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-481894 Share on other sites More sharing options...
fjh Posted October 26, 2021 Share Posted October 26, 2021 (edited) Not saying this is the case here BUT! I ran into this years ago ! I would be having the the dealer look in to the torque limit switch on the trans if the switch is engaged when this anomaly happens there may be a short circuit in the to wires heading to the torque limit switch causing the Ecu to think its in low! This will cut the power By almost exactly half no codes ! to eliminate this possibility cut or remove the wires at the VECU that come from the torque limit switch on the trans. just a place to look if your options are running out! Just sayin! Edited October 26, 2021 by fjh 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-481913 Share on other sites More sharing options...
theakerstwo Posted October 26, 2021 Share Posted October 26, 2021 Years ago i had a Freightliner with a 60 series come in with a power loss and a ABC code as the power who drop.The ATC was cutting power and a ABS module was the problem.I would have never found it with out the factorys help. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-481919 Share on other sites More sharing options...
Weston e7 Posted January 31 Share Posted January 31 Did you ever find problem ? Quote Link to comment https://www.bigmacktrucks.com/topic/67888-2005-cv713-ai400-power-issues/page/2/#findComment-545883 Share on other sites More sharing options...
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