Does the voltage on the low voltage side "switch" when you have no spark? That is, if you hook up a VOM, does it ocsillate between 0 and 12 v? If so, the coil is bad, if not, you have no signal to the EZL or the EZL itself is bad or has a wiring problem.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!