Skittle Posted March 12, 2010 Share Posted March 12, 2010 I'm not quite sure if this is a MS issue or what. The back story. I was driving home after work and when I hit the gas to get some speed it started backfiring alittle bit around 3-3.5k and the tach started bouncing around alot. After I got home I checked all the vaccuum lines and what not and took it for spin around the block. At that point it started to backfire like a loud machine gun. Yesterday I cleaned the plugs and started her back up. At this point if i barely pushed the accelerator it would stuble alot and the tach bounces all over the place. To which point the "gunfire" started all over again. Up untill this point I have had no issues with it running. Only change I made was install a FMIC and running stock boost. The car does not smoke at all and no leaks from the head. If this is in the wrong subforum sorry about that. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted March 15, 2010 Share Posted March 15, 2010 What sort of ignition are you running? Sounds like it's ignition related, so I'll need to know if MS *is* the ignition here. Quote Link to comment Share on other sites More sharing options...
Skittle Posted March 15, 2010 Author Share Posted March 15, 2010 Sorry matt its the stock 82/83 turbo dizzy. My ms unit is MS&S 1 v3.57 Quote Link to comment Share on other sites More sharing options...
mobythevan Posted March 15, 2010 Share Posted March 15, 2010 Posting the msq and a datalog will help us learn about your car setup and what could be going wrong. Quote Link to comment Share on other sites More sharing options...
Skittle Posted March 16, 2010 Author Share Posted March 16, 2010 (edited) Ok i figured it out, for some reason my timing jumped way high. Redline is where it should be at idle and blue line is where its at idle. I used a timing gun to see if it was off. I would post the MSQ file but my laptop quit turning on so now I have to move my desktop out to re tune it. Edited March 16, 2010 by Skittle Quote Link to comment Share on other sites More sharing options...
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