Ignition break down

Unfalconbelievable

Well-known member
Hey guys,
Im running a twin turbo'd 4.0l aussie ohc six. On the weekend i finally played around with my new ecu and got it running really well, except at 4750 any gear it misses. Not a complete dead miss but just dropping a couple cyls so its like a soft rev cut. Its runs a motorcraft electronic dizzy the same as whats on the 302 efi f trucks. It was running fine before on the old comp, everythings the same now except the ecu.... they run a powerful coil from the factory and its a new one, the module and dizzy are less than 20k old and the leads are new, plugs are new and gapped to 32 thou or 0.8mm. any ideas?
 
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