Cylinder problems

1993 SATURN SPORT COUPE
131,299 MILES • 4 CYL • FWD • AUTOMATIC
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TAMARA HALPIN
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  • 3 POSTS
1993 Saturn Sports Coupe 1.4L car isn't firing on two cylinders, changed the coil pack, but it didn't fix the probem, any suggestions what to try next.
Jun 23, 2011 at 9:35 AM
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DOCFIXIT
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What cylinders ? has compression test been done?
Jun 23, 2011 at 9:39 AM
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TAMARA HALPIN
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  • 3 POSTS
Not firing on 1 and 4. Yes compression test has been done
Jun 23, 2011 at 9:44 AM
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DOCFIXIT
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What where results? is there spark at plugs 1=4? are injectors pulsing?
Jun 23, 2011 at 9:51 AM
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TAMARA HALPIN
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  • 3 POSTS
Compression good, no spark, yes injectors pulsing
Jun 23, 2011 at 9:55 AM
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DOCFIXIT
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  • 18,828 POSTS
Think Ignition Control Module faulty
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Jun 23, 2011 at 10:05 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Also check if it has a crankshaft positioning sensor-
Jun 23, 2011 at 10:57 AM
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