edwin opie Posted October 1, 2010 Report Share Posted October 1, 2010 hi there, finally i can start g4 on k20a engine, but after 1 minute smooth idle the engine stop runing. and cant start again. after i checked, the ignition coil is not firing. and it was getting hot. the dwell time is 4.0 ms. is my dwell is too high, so it kills the ignition coil? what is the appropriate dwell time for this kind of ignition coil. what others thing to watch beside the dwell time, that make the coils get hot? thx. Quote Link to comment Share on other sites More sharing options...
edwin opie Posted October 11, 2010 Author Report Share Posted October 11, 2010 problem solved, wrong spark edge setting. the car is running smooth now, and love to hear the scream when reach 8500 rpm.. thx.. Quote Link to comment Share on other sites More sharing options...
Jurgen Biggelaar Posted October 13, 2010 Report Share Posted October 13, 2010 Hi Edwin. Good work, you are bang on. Honda's use an inverted ignition signal... So you would have also felt the coils get hot as they sat high, just at key on only with no engine running. Jurgen Quote Link to comment Share on other sites More sharing options...
fiestacosworth Posted November 18, 2017 Report Share Posted November 18, 2017 i know this was posted a very long time ago. but hope someone help. can anyone confirm if these coils need a rising or falling edge ? also was the 4.0ms dwell angle correct for these coils. ? also is it normal for them to get EXTREAMLY HOT ?? thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 19, 2017 Report Share Posted November 19, 2017 Falling as far as I know. 4ms sounds too much for a coil like this. 1.8-2.0@14V would be more typical for a coil like this. Quote Link to comment Share on other sites More sharing options...
AbbeyMS Posted November 19, 2017 Report Share Posted November 19, 2017 (edited) These are a good set up for K20A coil on plug coils, comes Motec website. 8 4.8 9 3.5 10 3.0 11 2.5 12 2.1 13 1.8 14 1.7 15 1.5 Just now, AbbeyMS said: These are a good set up for K20A coil on plug coils, comes Motec website. 8 4.8 9 3.5 10 3.0 11 2.5 12 2.1 13 1.8 14 1.7 15 1.5 Edited November 19, 2017 by AbbeyMS Quote Link to comment Share on other sites More sharing options...
fiestacosworth Posted November 19, 2017 Report Share Posted November 19, 2017 thanks for the responses. thats how i had mine set just wanted to confirm the data. i am very very confused tho. as i have just fitted x4 brand new k20 coils. i have copied the wiring from a k20 wiring diagram. pin 1 ecu pin 2 earth pin 3 +12v . pin 1 being the pin closest to the clip side of the plug. i have run ignition test and all 4 coils click. the car started and run also. went back down to the car today to check some stuff. had ignition on engine off as was checking some stuff and could smell burning. checked coils and all 4 coils have completely melted! i am confused as i have copied the wiring from others that are running these coils. what can cause this ? as I'm lost and very annoyed as thats £150 down the pan!! any help to get this sorted would be much appreciated. at a complete loss here! Quote Link to comment Share on other sites More sharing options...
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