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Going COP and setting ignition drives

Link G4 Plus Software Tutorial

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Discussion and questions related to the course Link G4 Software Tutorial

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I have a Link G4+ plugin that I am setting up on my MR2 and is also converting to COP at the same time with 1ZZ ignition coils.

Looking at the pin-out of the ECU, ign 2, 3 and 4 are already being used as aux output by default and is locked in the software. There are also ign 5, 6, 7 and 8 available on the expansion connector so logically, those are the ignition drives that I should be using for my conversion to COP.

However when I look up the help manual to see how the ECU would determine the firing order, I found this:

"When wiring an ignition system using direct spark, the firing order of the engine is not important as it will be entered into the ECU via PCLink. Ignition Drive 1 must be wired to cylinder 1 coil, Ignition Drive 2 to cylinder 2, 3 to 3, etc."

"Drive the igniter for cylinder one from Ign 1, cylinder 2 from Ign 2, cylinder 3 from Ign 3 and cylinder 4 from Ign 4."

Given I only have ign 5, 6, 7, 8 available that is not locked and can be freely set as an ignition drive in the software (and also ign 1 by default), will the ECU automatically treat ign 5, 6, 7, 8 as cylinder 1, 2, 3, 4 once I set their function to ignition and ignition mode to direct spark? How about ign 1 that is locked as ignition by default? Can I just ignore it? Or maybe I need to use ign 1, 5, 6, 7 instead?

I really have no idea who to configure the G4+ plug going from distributor to COP at this moment.

Thank you very much!

I've just run this past Link and can confirm that when you are live with the ECU and set the ignition mode to 'direct spark', it will over ride the functions on ign2-4 regardless what they actually show in the PC Link software. You can then reassign these functions if required on the expansion connector.

Thank you Andre, been a little busy lately, sorry for the late reply.

Thank you for pointing me to the right direction. Yes, I have got it all figured out now. The software interface was a little confusing but after a little more use I have figured out how it all works.

I initially thought ign output 1 to 4 was locked by default but I was wrong. It was only locked because I have set the ignition mode to direct spark. Once I switched the ignition mode back to distributor mode, ign 2 to 4 become unlocked. So basically, depending on the ignition mode selected, the software would decide on which ign outputs are required to be used as ignition drivers and lock those outputs so that they cannot be set for other functions. Although they software does not seem to tell you clearly, whatever function was set previously in the software would be overrided once it become locked although the old settings are still being shown.

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