what is the computer code po 1780 for and po 727

2000 SATURN STATION WAGON
100,000 MILES
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LARRYANDLUCY
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the check light light comes on the machine says theres are the codes that are wrong but i don't know what they are
Mar 11, 2012 at 7:44 PM
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SATURNTECH9
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Just to add to this one do you have a Lw1 Lw2 SW1 or SW2?Need that info to help you.
Mar 11, 2012 at 8:11 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
There is a bulletin for the V6 engine with a intermintant crank no start and a code P1780 to replace the main relay in the under hood fuse box.
Mar 12, 2012 at 8:00 PM
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