1994 Pontiac Firebird Backfire/Stalls

1994 PONTIAC FIREBIRD
57,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
JOHNSON.S85
  • MEMBER
  • 1 POST
Pontiac Trans AM - GTA - This is a 2nd car to me, as I don't drive it often. I last filled up in January and drove it home. It was probably 6 or so weeks and I took it out again, and after about 5 miles I did a loud backfire and stalled. I started it back up and got to where I was going. It did it on the way home too. It died most of the time when a backfire came, but not always. It has done this while idling or accelarating. When it dies, my RPM's go haywire up and down and a click/buzzing occurs. I have been trying to run the gas out of it, but haven't completed that yet? Could this be bad gas, any more help?
Apr 14, 2008 at 2:51 PM
Advertisement
Avatar
MERLIN2021
  • ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic


https://images.2carpros.com/forum/automotive_pictures/62217_95_OlderGM_7.jpg

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. If no codes show...test fuel pressure. https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm Go here and checkout our video.
Apr 14, 2008 at 3:06 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.