nwt1976 Posted January 17, 2018 Report Share Posted January 17, 2018 how far out does trigger signal need to be before you start getting trigger errors. Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 17, 2018 Report Share Posted January 17, 2018 A trigger error will usually only be registered if the tooth count between sync pulses did not match what the ECU has been set to expect. In some cases you can have significant trigger error even without a trigger error being registered/logged so there are other clues that you need to look at to diagnose. RPM ROC scatter and Dwell scatter are often good indicators. If you have a problem, please give more detail. Quote Link to comment Share on other sites More sharing options...
nwt1976 Posted January 17, 2018 Author Report Share Posted January 17, 2018 thanks for the reply ive just installed new short block in V5-6 wrx. Engine timing is about half tooth out of sync. im assuming because cylinder heads been machine few times now. i was looking at ways trying to verify timing issue, maybe ecu trigger scope? i have no trigger errors Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 17, 2018 Report Share Posted January 17, 2018 So you are saying the cam timing is out? You can only confirm that with a degree wheel and DTI... it is unlikely enough to upset the ECU triggering but the engine may not perform to full potential. Quote Link to comment Share on other sites More sharing options...
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