Re: Igntion Question
OEM Ford modules vs Chinese?
Some of the original Ford modules had a retard circuit built-in. It retarded timing (delayed it) when the RPM was less than 150 or so. That helped it start easier. Some Fords used a high initial base timing for emissions purposes - like 18 degrees. That made it try to "buck" on a hot restart. The retarding helped. Once the R's got up after it started, it went to normal timing.
On vehicles like Jeeps base and starting timing is lower even when you follow the timing procedure the book calls out - timing's set at higher R's. Once it slows down to idle, base timing's 8-10. So the retard's not needed.
But the aftermarket guys jumped in - sold cheapie modules without that feature. Ford had to go to the US govt and get import trade restrictions and copyright infringement rulings. The aftermarket guys were even putting the Ford logo on the modules - some were decals, some even the aluminum was cast with the Ford name. Lots of lawsuits.
Just because you get it from a dealer it isn't always genuine. Been there, done that. I bought a bunch (50?) from a Ford dealer going under - in Ford boxes - even had the casting imprint Ford logo. Turned out they all were aftermarket knock-offs. I had to be careful what I put them in. Some Fords really needed that retard.
The blue grommet - originally indicated a California car - had the delay. Red was "other states." But the knock-offs also used blue and red - no longer meant anything. They also started using other colors, - meaningless.
But -- if the connectors fit - some look like they might, but they have a keyway that's wrong. If it fits, it should work.
Essentially all Ford DuraSpark (I) modules are the same - except for the retard. (The Duraspark II is totally different - and the conectors are more squared off.) But some the harness wiring configuration was different, thus the wire colors changed, and what each pin did was different. They just mixed up the pins. (Always thought I'd figure out how to switch the pins, but even if you did, the connector would be wrong.)
Why? - Ford has a better idea!????