2003 Mitsubishi Galant CHECK ENGINE LIGHT ON

2003 MITSUBISHI GALANT
90,000 MILES • 4 CYL • FWD • AUTOMATIC
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COMERCIALAUTOSERVICE
  • MEMBER
  • 48 POSTS
HI GOOD MORNING WE HAVE IN MY SHOP A MITSUBISHI GALANT
2003 IN THE DASH BOARD CODE IS
P0421
WE LIKE KNOW ABOUT THIS CODE AND LOCATED
PLEASE
Dec 13, 2009 at 1:57 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Hi COMERCIALAUTOSERVICE and TY for the donation and Merry Christmas

Try resetting the computer-don't work get the catalytic converter checked out-
Dec 13, 2009 at 2:51 AM
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COMERCIALAUTOSERVICE
  • MEMBER
  • 48 POSTS
HI THIS CAR USE TWO
ONE IN THE MANIFORD THE OTHER ONE DOWN IN THE CAR
Dec 14, 2009 at 5:23 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Use an exhaust gas analyzer and check both of them
Dec 14, 2009 at 8:10 AM
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