83turbo280zx Posted August 12, 2012 Share Posted August 12, 2012 Ok so I recently installed a Megasquirt 2 setup. For the first month I was running just the basic MS2 code, 2.905 B&G Firmware. I got it running really good, got the VE and Timing tables pretty much set, 10psi it would pull to the redline with no problems. I recently switched to the MS2 extra 3.2.3 firmware to run a 16x16 VE table. All of my settings were the same including my timing map, but all of a sudden I couldn't make it to the redline under full boost. I played with some timing options here and there, ended up chaning my dwell settings that I read from another thread on here and that corrected the problem. Now while i'm driving I will get the occasional misfire as I transition into boost. I notice on my laptop on Tunerstudio, the tach will show a spike to 8k rpm as it misfires, then reads normal again. I never had this problem with the ms2 code. Also my rev limiter does not work, even though i have it set to hard limit at 6500 rpms. I am running BPR7ES plugs with .040" gap. Was thinking of switching to .035" but I never had this problem with the old code. I did notice there are a lot more trigger settings with the ms2e code, so maybe I'm not running the correct trigger settings? I have my offset set to 83 degrees like on my old ms2 B&G code and that was perfect, showed 12 degrees base timing at idle on the timing light which is where I wanted it. I am also not using any noise filtering options as I wanted to get more information on it before I started playing with it. Here are pictures of my current settings under spark settings, etc. etc. Any info would be greatly appreciated!! General Settings Ignition Options More Ignition Options Rev Limiter Settings Quote Link to comment Share on other sites More sharing options...
83turbo280zx Posted August 16, 2012 Author Share Posted August 16, 2012 Problem solved. I pulled the plugs, cleaned them and re-gapped to .030". Also edited the noise filtering settings and set it to .1ms and the concern has been solved. Quote Link to comment Share on other sites More sharing options...
motomanmike Posted November 12, 2012 Share Posted November 12, 2012 Are you running the stock L28ET distributor? Quote Link to comment Share on other sites More sharing options...
83turbo280zx Posted May 6, 2013 Author Share Posted May 6, 2013 ^^ yes running stock distributor. Did some more digging as the problem came back as I raised the boost back to 12psi. I went to a .040" gap, but I had my dwell setting way off, reset my dwell time and have had ZERO issues. Quote Link to comment Share on other sites More sharing options...
cws1807 Posted May 6, 2013 Share Posted May 6, 2013 Just curious as to what dwell settings worked well for you, I am also using a stock distributor and having a similar problem under boost. Quote Link to comment Share on other sites More sharing options...
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