Elroy Jetson Posted December 12, 2006 Share Posted December 12, 2006 86 XT Turbo, engine keeps quitting at low RPMs. Idles smooth as glass and suddenly starts dying and restarting after a little while. Then will backfire some when you try to restart, unless you wait a while. Sounds like the coil to me?? Any ideas?? New wires, plugs no difference. Will put new rotor and disty cap tomorrow-had to order. Do these coils have internal/external resistor? Can't find anything in the FSM about it. Above 2k rpm- no problems right now. Problem is getting progressively worse, though.:-\ Quote Link to comment Share on other sites More sharing options...
mikeshoup Posted December 12, 2006 Share Posted December 12, 2006 If its the stock coil, there's no ballast resistor needed on it. Quote Link to comment Share on other sites More sharing options...
Elroy Jetson Posted December 12, 2006 Author Share Posted December 12, 2006 If its the stock coil, there's no ballast resistor needed on it. Looks like the OEM, do you mean it doesn't need an internal resistor type and there is an external resistor somewhere on the car or the coil is OK running full 13 volts to the coil? Also, if there's an external resistor, where is it? My other subes had one near the driver's strut tower. Thanks, Wayne Quote Link to comment Share on other sites More sharing options...
mikeshoup Posted December 12, 2006 Share Posted December 12, 2006 I mean, there's no external ballast resistor at all on it. My 86 XT doesn't have one, so I'd assume yours doesn't either. I might be wrong on this, but I don't think any of the stock coils have an external resistor. I've never seen one at least. Perhaps you're thinking of the little black box on the coil bracket, that's the ignitor. Quote Link to comment Share on other sites More sharing options...
subiemech85 Posted December 12, 2006 Share Posted December 12, 2006 I suggest you try a bosch coil off a saab! the '79-'80 model coil provides a voltage roughly 30% higher than conventional coils the 82+ model coil provides 15% more voltage than the coils from eariler models looks like no resistor needed Quote Link to comment Share on other sites More sharing options...
Petersubaru Posted December 12, 2006 Share Posted December 12, 2006 my coil is leaking, so I to will have to do something about it..but, by putting in a larger coil..would it not cause the ignitor to work harder thus pre-maturely causeing the ignitor to wear out...are the resistence levels of the VW coils close to the stock subaru I suggest you try a bosch coil off a saab!the '79-'80 model coil provides a voltage roughly 30% higher than conventional coils the 82+ model coil provides 15% more voltage than the coils from eariler models looks like no resistor needed Quote Link to comment Share on other sites More sharing options...
Elroy Jetson Posted December 12, 2006 Author Share Posted December 12, 2006 my coil is leaking, so I to will have to do something about it..but, by putting in a larger coil..would it not cause the ignitor to work harder thus pre-maturely causeing the ignitor to wear out...are the resistence levels of the VW coils close to the stock subaru What are the symptoms of an ailing ignitor?? Wayne Quote Link to comment Share on other sites More sharing options...
subiemech85 Posted December 13, 2006 Share Posted December 13, 2006 the main difference is the turns ratio your ignitor should not "care" what coil it controls haven't said anything about vw Quote Link to comment Share on other sites More sharing options...
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