Fouled plug help

[TxGt1]

I recently installed hotrod cams/tune and I picked up a misfire on number 7. I replaced the plug and swapped the coil no CEL so far. I'm now replacing all the plugs and number 7 is gummed up again with only a few hundred miles on it. Does anybody know what could be causing this?

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[weather man]

Swap injectors and see if it moves.

 

[TxGt1]

Ok I'll give it shot.


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[TxGt1]

I have not swapped injectors yet I tried a new tune first and the same thing happen. The plug fouled on number 7 and damp with fuel. Should I just order a new injector? Before the cam and new tune I didn't have any issues.


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[Kalatrax]

I have not swapped injectors yet I tried a new tune first and the same thing happen. The plug fouled on number 7 and damp with fuel. Should I just order a new injector? Before the cam and new tune I didn't have any issues.


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No...swap the injector first as mentioned. While your doing that make sure you plugged them all in securely and seated them all well when you did the cams.

 

[TxGt1]

Ok I will swap it first.


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[86GT351]

Very important to make sure the Injector plug is securely clipped onto the injector!

 

[TxGt1]

Ok swapped the injector and still fouling the number 7 plug. I have no CELs and the cars run smooth just a lack of power and hunts for idle a bit when coming to a stop. Here's a pic of the plug. Looks like oil is getting on the plug. The car ran perfect before the cams.

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[cbass]

I had a similar problem with my neon many years ago, was the seal on the spark plug tube, and the top of the plug was soaked within a couple hundred miles of changing, how it got from top to bottom is beyond me, but it was happening.

 

[TxGt1]

I pulled the plug with 200ish miles and it was already fouled. I don't see any leaks . I guess I'll do a compression test maybe change the injector pigtail its brittle and looks like it is about to break.
Anybody else have any ideas?


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[fullmetal7777]

I'm kind of having a similar problem, except the inside part is considerably blacker than all the other plugs. Continuous misfirer in cylinder 4 which started happening about 2 hours after hot rod cam driving. I'll be keeping up with this thread
http://i.imgur.com/SSlN3ZPl.jpg