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English Section => Diagnostics => Topic started by: fdny on April 05, 2009, 06:19:09

Title: SPARK ANGLE BEFORE TDC
Post by: fdny on April 05, 2009, 06:19:09

Hi

SPARK ANGLE BEFORE TDC what is this?? In my Vectra 99  x16xel SPARK ANGLE BEFORE TDC jumping 7 to 10 all times? What going on??

THX

Title: Re: SPARK ANGLE BEFORE TDC
Post by: Treig on April 05, 2009, 12:52:45

Another way it can be called "ignition advance". It's the time parameter for ignition spark. It can changes in the idle mode - that's normal. When you are increasing rpm it would be rising up to 30 or more degrees.