thorns Posted October 8, 2021 Report Share Posted October 8, 2021 Just going through my base timing. Should I have the fuel turned off while setting initial timing, or at least ensuring i am in the ballpark before firing the engine? Current timing light is flashing when I run an ignition test, but when i crank the car in calibrate mode i am getting no flash. I do have main fuel turned off as didn't want to fire or flood the engine until I was sure I was close with base timing, so am wondering if that mayeb cuts the spark? I also have the spark plugs out to make it easier for engine to crank while i muck around, is this possibly a cause of the problem? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 8, 2021 Report Share Posted October 8, 2021 Yes, best to have fuel off if you are going to be cranking a lot. Pull a plug out to confirm you have spark when cranking. If no spark then confirm you have RPM and dwell showing in the software when cranking. If not then there is a trigger issue. If there is dwell and RPM but no spark then you have a wiring problem. Quote Link to comment Share on other sites More sharing options...
thorns Posted October 9, 2021 Author Report Share Posted October 9, 2021 okay no spark, and also no rpm or dwell reading on the screen, both remain at 0. So working out the trigger issue, is it most likely something I have set wrong in the pclink? 16v 4age bigport with dizzy still. Quote Link to comment Share on other sites More sharing options...
thorns Posted October 9, 2021 Author Report Share Posted October 9, 2021 Curent setup Trigger mode Multi tooth rpm filtering - 1-default Trigger 1 Trigger 2 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 9, 2021 Report Share Posted October 9, 2021 Do a trigger scope. Attach your tune. Quote Link to comment Share on other sites More sharing options...
thorns Posted October 9, 2021 Author Report Share Posted October 9, 2021 aw11 bigport.pclxscreen grabs from the scope, tried saving it, but nothing shows up in the file when i open it again. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 9, 2021 Report Share Posted October 9, 2021 It would have been better to attach the scope file rather than pics, but judging from the info I can see I would say your arming thresholds are too high. Set them like below and you should have RPM and dwell. If not, do another scope and attach the actual scope file. Quote Link to comment Share on other sites More sharing options...
thorns Posted October 9, 2021 Author Report Share Posted October 9, 2021 (edited) This the trigger scope file after making those changes. When i open it it seems empty? triggerscope after.llgx Edited October 9, 2021 by thorns Quote Link to comment Share on other sites More sharing options...
thorns Posted October 9, 2021 Author Report Share Posted October 9, 2021 this is the screen grabs in case the above does not open correctly. I also have dwell time showing now(4.4ms), and rpm showing when cranking. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 Signal is coming through now, but you have an incorrect number of teeth. You should have 24 trigger 1 teeth for every one trigger 2 tooth. Do you maybe have 4 teeth on trig 2? If so you will have to grind 3 off so there is only a single tooth on trig 2. Quote Link to comment Share on other sites More sharing options...
thorns Posted October 10, 2021 Author Report Share Posted October 10, 2021 49 minutes ago, Adamw said: Signal is coming through now, but you have an incorrect number of teeth. You should have 24 trigger 1 teeth for every one trigger 2 tooth. Do you maybe have 4 teeth on trig 2? If so you will have to grind 3 off so there is only a single tooth on trig 2. Does it matter which 3 are removed if I do have the 4 teeth trig 2? Will pull the dizzy tonight and check it out. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 No, remove any 3 teeth leaving 1. Doesnt matter which thorns 1 Quote Link to comment Share on other sites More sharing options...
thorns Posted October 10, 2021 Author Report Share Posted October 10, 2021 this looking better? have ground down 3 teeth, am getting a flash on the timing light now so seems promising..... triggerscopev3.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 Yep looks all happy now. thorns 1 Quote Link to comment Share on other sites More sharing options...
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