Originally Posted by bdsmitch
still on points i have that dura spark that i upgraded to the ford cap . I replaced that module once maybe it went bad again . i didnt really change anything between then i did everything before the first emmisions now i have a slight mis and wont pass
First things first? What are you failing emissions on? HC, CO, or NOX if your state tests for it. Cruise or idle failure?
Sounds like you have an ignition misfire and that is causing unburned gas to enter the exhaust stream.
Most big box parts stores can test the ignition module and let you know if it is failing. Anyway let's find out what the emission failure is before throwing parts at the problem. God bless.
Jon In Tucson
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