my engine light is on but reads no codes... what would cause this?

62,000 MILES
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TIM.JEFFGORDONFAN
  • MEMBER
  • 7 POSTS
i have had cylinder 3 misfire and changed plugs, wires, and coil. i also put in fuel inject cleaner then light came on after 2 days off. reads no codes???
Mar 3, 2012 at 4:54 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check yoru fuel pressure. if that is ok then check for vacuum leak.
Mar 3, 2012 at 7:01 AM
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