ok, i got my new dis 4 from msd (they replaced the other one under warranty), and start my car up. it ran like crap for a little bit (considering how carbonated the engine probably was from all that unburned fuel) but now i have a different problem. i can sit in neutral and rev the engine all goddamned day, and its sounds like it did before and is smooth as silk. as soon as i start driving though (especially when it boosts) the engine has a wierd sputtering sound out of the exhaust. it isnt a hesitation because it still runs the powerband smooth, but it just sounds like *** and worries me. any thoughts on what it could be? im either thinking some wiring in the ignition (i.e. plug wires, etc) is screwed, because the dis2 and dis4 have a basic solid light all the time, or at worst maybe an apex seal. ive still got to run a compression test to be sure, but any thoughts would be extremely helpful.

 

I dunno what the hell kinda ignition system you're running, but running both a DIS-2 and a DIS-4???&nbsp What the hell for???


I still don't understand why you got A DIS-2 and DIS-4 running in your car.&nbsp Who the hell install/recommended such a set-up???

Who did the tuning on the car?&nbsp It sounds like the Autronic load maps aren't tuned very well...



-Ted

 

as for the dis 2 and 4, it is because i am running four individual msd blaster coils. the dis 2 running the trailing coils and dis 4 running the leading. i probably could have gotten by with two dis 2s, but i got a helluva deal on the both of those. and i cant just run a dis 4 because i need four coil positive leads, and it only has two, and bridging the leading and trailing coil packs wouldnt be the best idea. and i also got the dis 4 because it has the tach adapter built in, whereas the dis 2 you have to buy that seperately. and btw, another thing about the car. it will idle fine when i start it cold and after driving for a little bit, but after awhile it doesnt want to idle. ive got to hold the brake and give it a little bit of gas at every damn stop just to keep it running. like i said before, i appreciate any help.

 

I am having the same problem with my 93 Auto, it started after a flooded engine drove me nuts to restart. But now the engine is running poor and sounds beautiful in Park, but under load when i gas it, it just hesitates and gargles some and even backfires all without pulling like it used to. Hope this doesnt mean I need a rebuild. Any help in this matter will gain my respect.
-Chris