GSD_Yahl Posted July 8, 2015 Report Share Posted July 8, 2015 so with the mechman 370 and the voltage regulator with gauge, on 2004 silverado i get this message Link to comment Share on other sites More sharing options...
reedal Posted July 8, 2015 Report Share Posted July 8, 2015 I have it too with my 2003 Tahoe with a 270A six phase hairpin from singer. I believe it's because it charges at a higher voltage than OEM alts SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
reedal Posted July 8, 2015 Report Share Posted July 8, 2015 But you also say yours is externally regulated and you have it at 15v? Try turning it down to like 14 even to see if it will clear it after a little bit. I can't do that with mine SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
GSD_Yahl Posted July 8, 2015 Author Report Share Posted July 8, 2015 ya i did that when i first got it and it has never gone away i just cant find anyone mentioning a way around it Link to comment Share on other sites More sharing options...
reedal Posted July 8, 2015 Report Share Posted July 8, 2015 Set it to 13.8 or around there. Then turn the engine off, disconnect the battery ground to clear the pcm of any fault codes, connect it back and see what that does SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
GSD_Yahl Posted July 8, 2015 Author Report Share Posted July 8, 2015 ill try that Link to comment Share on other sites More sharing options...
reedal Posted July 8, 2015 Report Share Posted July 8, 2015 Another thing to do is throughly clean all stock grounds. That can cause the message to pop too, but seeing as both of ours came up after installing HO alts, it's more than likely the high voltage. My voltage sits at 14.9 idle no load, 14.6 full tilt idle. SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
GSD_Yahl Posted July 8, 2015 Author Report Share Posted July 8, 2015 so your charging yours high too, is urs for comps tho is that why or is yours daily too Link to comment Share on other sites More sharing options...
reedal Posted July 8, 2015 Report Share Posted July 8, 2015 No mines daily. But mine is internally regulated so I can't change it. SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
DCPower_Anthony Posted August 12, 2015 Report Share Posted August 12, 2015 The reason this is happening is because your factory computer requires a stator tap. There's a wire in the factory harness that needs to see output in order for that service light to go out. Mechman should be able to help you with that. Link to comment Share on other sites More sharing options...
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