88-cnqst-tsi Posted June 29, 2014 Author Report Share Posted June 29, 2014 ill give it a try but what changes when the cyl setting is changed Link to comment Share on other sites More sharing options...
StarquestRescue Posted June 29, 2014 Report Share Posted June 29, 2014 Then potentiometer will fix that. The reason it does not read right is the safc were designed for a newer type ignition system that has pules that are a lower voltage then the 12v pluses off of the coil. The pot will reduce the range of the voltages pluses to what the safc was designed for. You could do the same thing with resisters, but the pot is easier. You just turn it till the rpm stops jumping and reads true. Since you will be doing tuning based on what rpm you are at it needs to read true and stable. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted June 29, 2014 Author Report Share Posted June 29, 2014 very true, ill pick one up and tell you how it goes Monday or the day after Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted July 3, 2014 Author Report Share Posted July 3, 2014 the one you suggested didn't work enough, I think I need one with more resistance Link to comment Share on other sites More sharing options...
StarquestRescue Posted July 3, 2014 Report Share Posted July 3, 2014 the one you suggested didn't work enough, I think I need one with more resistanceOk, if you got it to stop jumping around. Play with the cylinder setting. Quest tuner said to use 2. I do not know the correct cylinder setting for your model safc2. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted July 4, 2014 Author Report Share Posted July 4, 2014 It didn't stop jumping, at idle it still goes from 900-1700 but doesn't tip 2000 and I tried cyl 2 and that doubled the rpm Link to comment Share on other sites More sharing options...
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