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Cylinder problems

Tiny
TAMARA HALPIN
  • MEMBER
  • 1993 SATURN SPORT COUPE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 131,299 MILES
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.
Thursday, June 23rd, 2011 AT 4:35 PM

6 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
What cylinders? Has compression test been done?
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Thursday, June 23rd, 2011 AT 4:39 PM
Tiny
TAMARA HALPIN
  • MEMBER
  • 3 POSTS
Not firing on 1 and 4. Yes compression test has been done
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Thursday, June 23rd, 2011 AT 4:44 PM
Tiny
DOCFIXIT
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What where results? Is there spark at plugs 1=4? Are injectors pulsing?
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Thursday, June 23rd, 2011 AT 4:51 PM
Tiny
TAMARA HALPIN
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  • 3 POSTS
Compression good, no spark, yes injectors pulsing
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Thursday, June 23rd, 2011 AT 4:55 PM
Tiny
DOCFIXIT
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  • 18,828 POSTS
Think Ignition Control Module faulty
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Thursday, June 23rd, 2011 AT 5:05 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Also check if it has a crankshaft positioning sensor-
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Thursday, June 23rd, 2011 AT 5:57 PM

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