Quote:
|
If a plug shows a rich condition (all black) and I lean it out will the plug turn back to a normal color or once it is black it never goes back (please, no pun intended here).
|
No,
If you did not clean the plug and just put it back in black
(no reference to AC DCs "back in black") it will not turn back to normal for quite awhile.
You are going to have to clean the porcelain to get a correct reading.
Depending on how black the plugs are (wet black or dry black) B12 might clean them or buy new ones.