1997 Gmc Sonoma Had P0302 Replaced Spark Plugs Wires Realativley New Drove

1997 GMC SONOMA
120,000 MILES
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BMASE78
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  • 1 POST
I had a p0302 I replaced the spark plugs, the wires are realativley new. I drove the truck for a couplr days and now the same code is back. What could be causing the plug in clinder 2 to foul out like that?
Jan 9, 2013 at 3:49 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check yoru fuel pressure first and if that is ok check for a vacuum leak. what engine is it ecause fuelpressures are different
Jan 9, 2013 at 3:30 PM
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