smiker Posted November 5, 2023 Report Share Posted November 5, 2023 Car has been off the track for 12 months, it now has lots of trigger errors, it did have trigger errors at idle in the past but seems worse now, they seem to be mainly apparent at idle and around 4k to 5k rpm. I have checked the trigger scope and Seems to look normal to me. In the logging shows rpm spike to 60000k rpm. Wonder about voltage setting for triggers also not sure about the noise reduction if need. A bit lost. Any help greatly appreciated Trigger Scope Log 2023-10-6 6;00;59 pm.llg Trigger Scope Log 2023-10-6 6;00;24 pm.llg No Limit.pclr No Limits.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 5, 2023 Report Share Posted November 5, 2023 Your cam signal crosses zero volts at exactly the same time as the crank, this means with the smallest amount of cam movement the edges will cross so the ecu will see either 1 more or one less crank teeth than it expects. The cam zero crossing should normally be where I have drawn the pink line - roughly halfway between 2 crank falling edges. You will need to move the cam somehow. Quote Link to comment Share on other sites More sharing options...
smiker Posted November 6, 2023 Author Report Share Posted November 6, 2023 Thanks, I will move the tooth on the cam, Appreciate it Quote Link to comment Share on other sites More sharing options...
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