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1979 Pontiac Firebird ignition module

Tiny
SCOTTMO
  • MEMBER
  • 1979 PONTIAC FIREBIRD
Electrical problem
1979 Pontiac Firebird V8 Four Wheel Drive Manual

My ignition module went out and I replaced it and it ran fine for two days then went out again. What could be the problem?
Tuesday, August 19th, 2008 AT 10:18 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Cross these two terminals as shown, then turn the key on. Count the flashes, a 22 will flash as 2 flashes then a short pause, then 2 flashes, if more than one code is stored, the pause will be longer. The codes will display three times and end with 12. Write them down and post here. This connector is right under the middle of the dash...


https://www.2carpros.com/forum/automotive_pictures/62217_95_OlderGM_34.jpg

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Tuesday, August 19th, 2008 AT 3:03 PM
Tiny
SCOTTMO
  • MEMBER
  • 2 POSTS
This is a 1979 trans am. It does not have a GM 1995 & older diagnostic connector.
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Tuesday, August 19th, 2008 AT 9:05 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Sorry, that started in 81. Check the tac wire, if it grounds aywhere the engine wont run. Prety sure it's tan colored. Been a while since I owned my 6.6!
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Thursday, August 21st, 2008 AT 5:41 PM

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