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My 84 Trans Am wont get spark?

Tiny
TRANSAM MAN 89
  • MEMBER
  • 1984 PONTIAC FIREBIRD
I have an 84 trans am and its not getting spark. There is power going in but no spark going out.I replaced the cap, rotor, coil, and control module.I was told it could be the computer because the guy who had it before me hooked the battery up backwards.I need help any suggestions?
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Friday, November 23rd, 2007 AT 4:15 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try doing below


https://www.2carpros.com/forum/automotive_pictures/12900_est_1.jpg



www.eautorepair.net
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Friday, November 23rd, 2007 AT 5:28 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Here's the theory and operation of the ignition system in HEI-EST systems.


https://www.2carpros.com/forum/automotive_pictures/62217_Operation_1.jpg


https://www.2carpros.com/forum/automotive_pictures/62217_HEIEST1_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_MainTest_1.jpg

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Friday, November 23rd, 2007 AT 5:32 PM

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