Finno Posted September 18, 2020 Report Share Posted September 18, 2020 Howdy I have a link g+ plug and play Plugged it up and I now have constant negative out of all 6 coil trig wires. So it's cooking my ignitor can't think what could make it do this? Thank you! Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 18, 2020 Report Share Posted September 18, 2020 That would be correct behavior for 99% of ignition systems in use today. Most ignitors or coils start charging on the rising edge and spark on the falling edge. So with the engine not running the ignition outputs should be low all the time (ground), with the engine running there will be a short high pulse (~6V) for the 2 or 3ms dwell time once per cycle, the rest of the time it will be low/gnd. The only exception to this convention is some Fords with the TFI system in the 1980/90's and some early hondas that had the coil inside the distributor. What car do you have and what ignition system? Quote Link to comment Share on other sites More sharing options...
Finno Posted September 19, 2020 Author Report Share Posted September 19, 2020 It's on a 300zx running the standard coil over plug and RB 25 ignitor Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 19, 2020 Report Share Posted September 19, 2020 Yes, so it would be normal/correct for the ignition outputs to be grounded all the time for this car. Quote Link to comment Share on other sites More sharing options...
Finno Posted September 20, 2020 Author Report Share Posted September 20, 2020 I'm still not getting spark and ignitor is getting really hot Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 21, 2020 Report Share Posted September 21, 2020 Do you get spark if you use the ignition test function? Can you confirm in ignition setup>ignition main, that spark edge is set to falling. Do you have an oscilloscope or LED test light available? Quote Link to comment Share on other sites More sharing options...
Finno Posted September 22, 2020 Author Report Share Posted September 22, 2020 Hi I got it sorted someone had put a new coil and had the wires on the wrong side of ignitor. Now I have another problem I'm not getting any dtcs or codes. But I did look on the board and there is a bit to track Car still runs now ect but does when driving. That burnt track doesn't look good tho Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 22, 2020 Report Share Posted September 22, 2020 What do you mean by you are not getting DTC's? Do you mean via an OBD2 port? The OBD2 port isnt even connected to the ECU. Quote Link to comment Share on other sites More sharing options...
Finno Posted September 28, 2020 Author Report Share Posted September 28, 2020 No.codes via g4+ program on the laptop. And that track burnt out. Do you no what it runs? Car still starts ect Quote Link to comment Share on other sites More sharing options...
Vaughan Posted September 28, 2020 Report Share Posted September 28, 2020 That track controls the ECCS Relay Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 28, 2020 Report Share Posted September 28, 2020 That track still looks intact to me, it has been very hot so it has burnt the soldermask and other coatings off, but the copper still appears to be in one piece, so it should still work fine. This probably would have happened due to the short in your coil wiring. Quote Link to comment Share on other sites More sharing options...
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