Spyrosgeo Posted May 6, 2021 Report Share Posted May 6, 2021 Hello , we own a LS3 engine . The engine is brand new . we have a problem with the start up . The problem is on 10 times only ones engine starts and all the other times is like ignition on the other cycle . If I stop ignition and reigition the engine starts . I use LS3 trigger mode I upload 3 triggers scopes the first file is on ognition with ignition off . The second file is on ignition . The last one is on idle . can you see any fault ? TriggerScopeLog LS3 PROBLEM CRANK NO RUNNING NO IGNICION.llgx TriggerScopeLog LS3 PROBLEM CRANK NO RUNNING.llgx TriggerScopeLog LS3 PROBLEM CRANK.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 6, 2021 Report Share Posted May 6, 2021 What trigger mode are you using? Some variations of the 58X engines can have the cam sensor in rotated about 90 deg. The Chev LS2/LS7 (90 offset) mode should work for yours. Spyrosgeo 1 Quote Link to comment Share on other sites More sharing options...
Spyrosgeo Posted May 25, 2021 Author Report Share Posted May 25, 2021 Thanks for your help it works perfect. Quote Link to comment Share on other sites More sharing options...
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