DON 44
Contributor
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- 78
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- jefferson tx
I started tunning my truck today, it has a esp 30.5...The directions say 1 1/2 out low/2 out high/ then make full throttle runs for 30 seconds and check plug to make sure it's still a dark color.Then go down an 1/8 at a time and repeat this until the plug is a brown paper bag color.my question is are they talking about the little L shaped piece at the bottom of the plug or the bottom of the plug itself....I'm about an 1/8 over 1 1/2 on the high now and happy as hell with the way it's running,but the little L shaped piece on the plug is still a dark color not brown..It is a lighter color then when i started though.. I'm scared as hell to go below 1 1/2 though..I just need to know what part of the plug should be this brown color.