It's the ignition control module your after here - you won't necesarily get a CEL if the igniter is bad. There is a procedure listed in the helms manual as to measuring out the igniter with a multimeter, or you can take it to a car parts store that tests ignition modules. Usually, if there's a problem with one of the sensors in the distributor, you will get a CEL, but I still wouldn't rule out that possibilty as well. The igniter is the easier and cheaper part to replace, but the sensors go along with the whole distributor housing as one part - rip off! BTW have you checked your ground wires yet?