Tuning issues ?
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Tuning issues ?
I have a bone stock 87 TII and when i pulled the plugs before i drove it home from denver they looked normal as far as coloration (tan, stain-white). after the 600 mi trip back from denver and a little spirited driving arround here i pull them and they are all pretty dark. The Trailings are at least a shade darker than the leading. I dont know if maybe its running lean from a fouled injector or if its running rich? any ideas would be appreciated.
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if theyre dark, you are running rich this could be caused by a bunch of things tho. did you notice a lck of power. did anything else change on the car besides the plugs?
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Originally posted by 1987RX7guy
I don't think you want them white. I beleive that is an indicator of a lean condition. That is one thing you don't want to be. pre-ignition occurs with too lean a mixture and that causes damage in most cases resulting in an engine rebuild being the cure.
I don't think you want them white. I beleive that is an indicator of a lean condition. That is one thing you don't want to be. pre-ignition occurs with too lean a mixture and that causes damage in most cases resulting in an engine rebuild being the cure.
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