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What the hell is the SCB plug?

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Old Mar 18, 2007 | 05:59 PM
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Mr Haney
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What the hell is the SCB plug?

OK guys...finally got a day off and am changing plugs in my 01 Lightning. Yes is is a little challenging. The 3rd one back on driver's side is going to be the sole reason I spend eterinty in Hell. Anyway, on the driver's side, just above the 3rd one back there is a regulator. Above that an electrical thingy-ma-bobber with place for a wire labled "SCB" to plug in. Mine is unplugged and I don't know if I did it trying to get the spark plug out, or was it unplugged for a reason, i.e., when it was tuned (Johnny Lightning). What is it and should it be plugged up?

How do you get the damned 7mm boly out on this GD coil pack?
 
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Old Mar 18, 2007 | 10:30 PM
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Mr Haney
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SCB wire/ plug question

Whew!!! Got the plugs changed! Found out SCB wire is boost bypass. Bought Denso plugs for my truck, with 4# pulley, from Johnny Lightning. The plugs that came out looked good. They were Motorcraft Platinum. They were gapped at 40- 42. The lady @ Johnny Lightning said the Denso Plugs were pre-gapped and ready to install. They were gapped at 30 or so. Am I missing something here?
Took truck for a test run and it runs fine. What are the effects of miss gapped plugs?
 
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Old Mar 18, 2007 | 11:10 PM
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Originally Posted by Mr Haney
Found out SCB wire is boost bypass.
Glad you got it figured out.

I was going to ask you if this was the plug you were talking about.


If it was, I was gonna tell you what you've already discovered.

As for those PITA 7mm coil screws, I replaced mine with these extenders.


It makes changing the plugs tons easier.

Stewart
 
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