Doga Posted June 1, 2020 Report Share Posted June 1, 2020 Hello, i have wired up an atom 2 ecu to a honda l13a engine (fit/jazz) for a small aircraft project, however using the K20 or l15b trigger setups i could not start it, I am getting the rpm signal all sensors are working but no start. Can anyone help me ? Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 1, 2020 Report Share Posted June 1, 2020 Please attach the tune and a log of it cranking. To confirm the trigger pattern can you pull the crank and cam sensors out and have someone slowly turn the engine by hand while you count how many teeth you see down the holes. From google images it looks like it may have 12 or 12+1 on the crank and 4 on the cam but I cant find any good clear pics. Need to confirm if the cam teeth are all the same size/spacing and whether crank is 12 evenly spaced like a F20 or 12+1 extra like a K20. Quote Link to comment Share on other sites More sharing options...
Doga Posted June 1, 2020 Author Report Share Posted June 1, 2020 Thanks for the quick reply, the crank and cam sensors are located at the flywheel side of the engine on my engine, Crank trigger is 60-2 cam trigger is below Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 1, 2020 Report Share Posted June 1, 2020 Ok that is a bit of an odd one. The alloytec trigger mode that our L15 base map uses may work - will depend on the phasing between crank and cam. Otherwise if that doesnt then there are a couple of other options that should. Are you getting realistic and stable RPM when cranking? Any trigger errors when cranking? Have we got spark? Quote Link to comment Share on other sites More sharing options...
Doga Posted June 1, 2020 Author Report Share Posted June 1, 2020 With the v6 alloytec trigger i can get realistic rpm signal, i also got spark but no start, whatever i tried with fuelling didnt make any difference. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 1, 2020 Report Share Posted June 1, 2020 Have you put a timing light on it to confirm spark is roughly close to where it should be? Have you tried adding or subtracting 360 from the offset? Quote Link to comment Share on other sites More sharing options...
Doga Posted June 12, 2020 Author Report Share Posted June 12, 2020 Hello, the spark is roughly at the right place, i tried adding and subtracting 360deg, still no start. What do you think the problem might me ? Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 12, 2020 Report Share Posted June 12, 2020 Can you attach the tune and a PC log of it cranking. Quote Link to comment Share on other sites More sharing options...
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