OBD2 code reading PO300

Tiny
SUNNYLEXUS
  • 2002 CHEVROLET SUBURBAN
  • 150,000 MILES

Obd2 code reading po300. Engine lope on #3&4 cyclinders. Change spark pluges-coil-injecters and wires. 2002 chev silverador.

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Sunday, January 20th, 2013 AT 5:05 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,533 POSTS

Wow, lots of parts.

Start with basics, compression and fuel pressure.

Roy

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Sunday, January 20th, 2013 AT 6:20 PM

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