rkde Posted December 31, 2020 Report Share Posted December 31, 2020 Hi I am having some difficulties with setting up the ECU to run Audi R8 coils. I have been running the ECU for years and this change is just to move from the wasted spark system on the mini to direct injection. I have run all new wiring at the correct size for power and ground from the fuse box, there is a ground for the cylinder head and then finally the ECU interface is as follows; Pin 1: IGN 3 (Originally did coil pack 2&3) - Now cylinder 3 Pin 2: IGN 4 (Originally did coil pack 1&4) - Now cylinder 4 Pin 3: IGN 1 - Now cylinder 1 Pin 4: IGN 2 - Now cylinder 2 This is where my confusion starts; I have run the 10hz ignition test and can confirm all wiring has the correct 10hz and low resistance within the wiring, I have 12.5v+ available at the coils. When I turn the engine over I have albiet a weak spark on cylinders 3 & 4 and nothing on 1 & 2 - I am totally baffled as I would have expected if anything the original outputs which now supply cylinders 1 & 2 would be work and 3 & 4 would not Serial number 12842 V88 topboard - firmware 4.10.2 boot 1.4 With reference to the weak spark, is it expected that the vipec needs a booster for the output? I wouldn't have thought so because there is an igniter within the coil. Thank you - Richard Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 31, 2020 Report Share Posted December 31, 2020 As per the manual, the Mini ECU has ignitors built-in on ignition drives 1 & 2, so you can only use "dumb" coils (coils without built-in ignitors), and you will also have to use a 2 or 3 channel external ignitor for ign 3 & 4. rkde 1 Quote Link to comment Share on other sites More sharing options...
rkde Posted January 1, 2021 Author Report Share Posted January 1, 2021 Thank you Adam, yes I'd looked but honestly missed it. Quote Link to comment Share on other sites More sharing options...
rkde Posted January 1, 2021 Author Report Share Posted January 1, 2021 I've read again what you've said, are you stating I can't use the Audi red top cop I have with this ECU? Is there another option? I'm guessing not because I can't change it to be wasted spark with COP on the other channels? Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 1, 2021 Report Share Posted January 1, 2021 The easiest option will be to stick with dumb coils (usually two wires). Quote Link to comment Share on other sites More sharing options...
rkde Posted January 2, 2021 Author Report Share Posted January 2, 2021 11 hours ago, Adamw said: The easiest option will be to stick with dumb coils (usually two wires). Cheers Adam, Whist disappointed I unwired all the COPs and wired back in the stock coil system - then the newly build engine came to life and ran well. I will close the book on it from here but may visit again in the future when I have a little more time to play. What would be been great is if I could have set the system to wasted spark but use output 1&2 and not have it default over to 3&4 but it does not look like it will allow me to do that Next to try and understand the CAN1 output to the racedash - must say it looks a whole lot easier on the G4+ version than the Vipec... Quote Link to comment Share on other sites More sharing options...
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