Mohamed ayed Posted April 14, 2022 Report Share Posted April 14, 2022 Hello there I've just installed IGN1A coils with a EVO 7 G4+ pnp ECU and i have a very weird problem when all the coils are plugged no coils firing when i un plug only one coil any coil the other 3 fires very well I'm running them in a wasted spark mode coils 1&4 connected to pin 10 in the ECU which is ign 1, coils 2&3 connected to pin 23 which is ign 2 any thoughts what could be the problem ?! Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 14, 2022 Report Share Posted April 14, 2022 Hmm, no that sounds a bit odd. So if you unplug coils 2 & 3 and do an ign test on Ign1, do coils 1&4 spark? Or do you only get a spark with one coil connected to a drive? Quote Link to comment Share on other sites More sharing options...
Mohamed ayed Posted April 16, 2022 Author Report Share Posted April 16, 2022 On 4/15/2022 at 12:16 AM, Adamw said: Hmm, no that sounds a bit odd. So if you unplug coils 2 & 3 and do an ign test on Ign1, do coils 1&4 spark? Or do you only get a spark with one coil connected to a drive? i solved the problem ECU GND wasn't connected correctly the problem was if you unplug any coil the 3 works fine if you plug the fourth coil nothing works Quote Link to comment Share on other sites More sharing options...
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