Ignition and misfire

Tiny
JATROTTER
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 120,000 MILES
There is a misfire on cylinders 1 and 4 and they share the same ignition coil. I unplugged the ignition coil for those two cylinders and it had no spark. I unplugged the others and they had spark. I replace the ignition coil but that did not solve the problem and I also replaced the spark plugs and wires. I then tested the ignition control module pins that go into the ignition coil and I have around 12 volts on 1 pin and less than 1 volt on the other pin. I cannot figure out the problem and I really need help.
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Thursday, April 18th, 2013 AT 5:32 PM

2 Replies

Tiny
ASEMASTER6371
  • EXPERT
The module has failed. Replace it

Roy
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Thursday, April 18th, 2013 AT 6:00 PM
Tiny
JATROTTER
  • MEMBER
Thank you
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Thursday, April 18th, 2013 AT 6:16 PM

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