Hello,

I have a few questions involving timing and which tables are being used during idle. While observing the "SPARKADV Degr" PID during a start up and idle....my timiing jumps to aprox 13 deg during cranking and then goes to 0 deg while truck is idling...I want to change my timing a little and see if it will stop my headers from getting too hot. I believe the timing is too retarted and I am only able to idle for a few min before the headers get too hot. I'm not exactly sure if this is the correct PID for timing and if so...is it using the Base Spark Table P/N, and if its using this table why it isn't showing me some timing numbers that are remotely close to the table. I will try and post my scan, and tune file. Also...my RPM in the scan tool shows double of what my TAC in my truck reads....i'm sure I must have a setting or unit wrong in my scan tool??

Click image for larger version.  Name: Base Spark PN.png  Views: 223  Size: 287.2 KB  ID: 16957

May 25th 2014 Timing Obs.efi

1st Read Plus IFR Change.tun


Thanks guys,

Jordan.