landy_andy Posted June 6, 2009 Share Posted June 6, 2009 Hi, Am finally getting round to ditching the 14CUX on my 3.9 & was wondering if anyone had recently installed a MS II with the IAC upgrade ? Did a bit of searching but couldn't semem to find what I wanted to know.... Andy Quote Link to comment Share on other sites More sharing options...
steve_d Posted June 6, 2009 Share Posted June 6, 2009 I have MSII extra running on a 3.9. Only at the early stages of tuning it but it is running and on the road. What form of IAC are you looking at? Steve Quote Link to comment Share on other sites More sharing options...
landy_andy Posted June 7, 2009 Author Share Posted June 7, 2009 I have MSII extra running on a 3.9.Only at the early stages of tuning it but it is running and on the road. What form of IAC are you looking at? Steve The origional GM type IAC valve as fitted on the 3.9. Reading the MS-II site, the code/daughtern board now supports the use of these IAC valves. I already have EDIS running on my truck, installing the MS-II was the next step. Andy Quote Link to comment Share on other sites More sharing options...
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