Chris77 Posted March 26, 2018 Report Share Posted March 26, 2018 Hello Second question . Atom ecu running chev v8 with a holley dual sensor distributor . The distributor has two hall effect sensors in it , one an 8 tooth crank and a single tooth cam (as you guys sorted me out in my first question ) . I have wired up the two sensors as in the future my mate may want to go with wasted spark . 8 tooth to trigger one and trig 1 is set as priority . As it is using the distributor I set the ignition mode to distributor . When I go to set the trigger offset , it and the reference timing seem to be locked out . Is this because I have selected distributor mode and in theory I need to set the distributor trigger to the reference timing ? If not why is this locked out ? The popup window comes up and I can enter a value for reference timing and trigger offset but they do not stay in the settings when I close the window . The issue is the holley distributor is expected to be set to trigger at 50 BTDC , and the sensor is locked to the rotor cap . So I can't just rotate the distributor to get TDC or close to it as the rotor will then be out of sync with the cap . Thanks Chris Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 26, 2018 Report Share Posted March 26, 2018 If your trigger mode is currently set to "1 tooth per TDC", then offset will not be adjustable. You can instead change to multi-tooth mode and set trig 1 with a tooth count of 8 and multi-tooth position of cam then you will be able to adjust the trigger offset. Quote Link to comment Share on other sites More sharing options...
Chris77 Posted March 26, 2018 Author Report Share Posted March 26, 2018 Trigger setup is set to Multitooth , priority trig one and rpm 1-default . Trigger one set to optical/hall , was set to crank , and 8 tooth count . Changing this to Cam in PC link not connected to the ecu still does not enable trigger offset for me . I am not sure how/if I need to disable trigger two , the single "cam" trigger and in effect its not used at this stage . I was hoping having it there would not be an issue , I expect its not when its set up correctly . I will go and read some more and see if I can work out what I have done . Thanks Chris Quote Link to comment Share on other sites More sharing options...
MagicMike Posted March 26, 2018 Report Share Posted March 26, 2018 You need to press 'enter' to confirm the value you put in the box. The box will go blue. Ask how I know... Quote Link to comment Share on other sites More sharing options...
Chris77 Posted March 27, 2018 Author Report Share Posted March 27, 2018 Hmm , well now don't I feel stupid . Many thanks . I will try it on the car this evening but it work on pc link on the work computer here pressing enter . Cheers Chris Quote Link to comment Share on other sites More sharing options...
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