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1997 Honda CRV black exhaust pipe

Tiny
DEBO CR-V
  • MEMBER
  • 1997 HONDA CRV
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 106,125 MILES
I always use denso Q20 spark plugs and for the first time two days ago my car was throttling like it is missing, when the plugs were taken out they were black and the air screw was black and the exhaust pipe also.
Friday, March 20th, 2009 AT 3:12 PM

1 Reply

Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
You may have an over-fueling issue or that may be carbon.

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

Go to this link and tell me which one your spark plugs looked like and I can assist you. Also tell me if it was all four spark plugs or just a few that looked like this.
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Saturday, March 21st, 2009 AT 2:11 PM

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