help! i think i broke it[NG/NF ign. rough running]

[Ben Swann]

I wouldn't go there.  The NG has fixed distributor and timing should not deviate - yes you can advance this distributor, but not without trouble and the ECU is supposed to take care of it.

Check all the other IGN related stuff out, incl. grounds to ign. booster if no fix on wires, rotor, cap <- betting on this.

Ben
[Same thing happened to one of my cars about 5 years ago(1986 4000csq.) Very 
disturbing.

I messed with everything under the hood trying to get it to return to normal.

I finally got the bucking to mitigate but not totally go away by changing 
the spark plug gap to 45/1000.  The next week, I discovered that I could 
get the bucking to clear up by changing the spark advance about 2 degrees 
outside the book specifications.

I don't recall if it was clockwise or counterclockwise.

After the spark adjustment, I regapped the plugs to normal and the bucking 
stayed gone.

Doyt]