I think... don't quote me but I think Barratt had some kind of conversion but IMO the best solution requires a small block Ford, Chevy, LA series Mopar, etc.
$20-50? WOW! I might learn something. Hmmm, I didn't know this tidbit? I am wondering why they didn't put the actual module away from the heat so it would last 3-4 times as long? But was that also a Lucas fuel management system or was that some version of Bosch? Oh .. GM was well known for under sizing capacitors. And that's why you replace more GM and Mopar ecu's. The Japanese were better about using better quality electronics after the oh I'd say early mid 80s. I've never in my life replaced a Ford ECU even where if it had been anything else it would have had to have been replaced 4 or 5 times. If a Ford ECU has gone bad usually you'll find the culprit over there in the vicinity of the battery. A couple of big wire thingies... what do they call them, cables?
I just ordered a module for my car. I am chasing down a rough idle issue. I figured it wouldn’t hurt to replace it to rule it out since it’s pushing 40 years old.
Hallo and thank you for the great video. I have one question: The D72000 is a multiple spark module - how does this work with the ECU? Also it has a rev limiter designed for V8 - so i guess you have to set it to 9000rpm for 6000rpm on a V12 engine
I would say overall driveability issues when hot, or the car stalling out, loss of ignition when hot, etc, or worst case, no spark at all even when cold. Usually I've seen these modules fail partially where they start to give out when hot but then work again when cooled down. Loss of spark either way, but manifests in driveability issues, misifres, etc.
I believe it's mainly 12cyl cars that have the 4 wire. I think it's due to a coax wire that goes back to the EFI computer for managing fuel pump and efi triggering. I may be off a bit in that but I do think thats the main difference.
The ones holding the unit on were 1/2" I believe. A lot of fasteners on the Jag are imperial (sae) sizes, 7/16 and 1/2 very common. 13mm would work. The ones holding the case together (small bolts) were 3/16 I believe
