rough idle

2001 MAZDA B3000
176,000 MILES • 6 CYL • 2WD • MANUAL
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DAVIDHUNTER
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  • 2 POSTS
2001 mazda b3000 rough idle, backfires, had flashing check engine light. changed plugs and wires, still idles rough , backfires, engine light out probably because i disconnected the battery. have not actually driven it since, afraid of killing it. could it be the coil pack? old plugs were clean, no oil, no carbon.
Nov 16, 2010 at 6:31 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
Nov 16, 2010 at 6:33 PM
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DAVIDHUNTER
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  • 2 POSTS
can i do this myself with one of the code readers available though the parts outlets?
Nov 16, 2010 at 6:35 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Autozone an advance auto-can do it for free
Nov 16, 2010 at 9:33 PM
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