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Number 4 cylinder fouling plug from fuel

Tiny
JOHN611
  • MEMBER
  • 1997 SATURN SC2
  • 200,000 MILES
Have good compression getting fuel and spark but number for cylinder keeps fouling the plug. New plugs wires TCP sensor. All other cylinders are good. Compression is 185n that hole. Could injector or fuel pressure regulator be bad
Thursday, June 13th, 2013 AT 8:09 PM

5 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
What kind of plugs are are you running?Also are you sure its fuel and not carbon fouling?
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Thursday, June 13th, 2013 AT 9:01 PM
Tiny
JOHN611
  • MEMBER
  • 3 POSTS
Ngk R plugs and not sure if carbon or not. Black sooty looking
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Friday, June 14th, 2013 AT 1:37 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Those aren't platnuim plugs are they?
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Friday, June 14th, 2013 AT 6:00 PM
Tiny
JOHN611
  • MEMBER
  • 3 POSTS
No they aren't
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Friday, June 14th, 2013 AT 7:22 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Are you burning a lot of oil?Also how quick does the plug foul?
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+1
Friday, June 14th, 2013 AT 7:39 PM

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