Mechanics

CYLINDER PROBLEMS

1993 Saturn Sport Coupe • 4 cylinder 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.
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Tamara Halpin
June 23, 2011.



What cylinders? Has compression test been done?


Docfixit
Jun 23, 2011.
Not firing on 1 and 4. Yes compression test has been done


Tiny
Tamara Halpin
Jun 23, 2011.
What where results? Is there spark at plugs 1=4? Are injectors pulsing?


Docfixit
Jun 23, 2011.
Compression good, no spark, yes injectors pulsing


Tiny
Tamara Halpin
Jun 23, 2011.
Think Ignition Control Module faulty


Docfixit
Jun 23, 2011.
Also check if it has a crankshaft positioning sensor-


Rasmataz
Jun 23, 2011.