Car started, shut off, and will not start, codes p0261, p0264, p0267, and p0270?

2014 CHEVROLET SONIC
129,000 MILES • 4 CYL • 2WD • MANUAL
Avatar
DQUINN2941
  • MEMBER
  • 1 POST
i started the car to let it warm and it shut off and won't start again. i got four codes that came on at the same time. p0261, p0264, p0267, p0270. What would cause all of these to fail at the same time?
Jan 25, 2023 at 3:50 PM
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.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,189 POSTS
This mean the PCM went out or the power for the injectors system has a fuse blown. In the under-hood fuse panel please check the INJECTOR/IG COIL fuse, with the key on see if it has power are is a guide to help and the fuse location as well. If the fuse is blown you have a shorted fuel injector. With all if the injectors unplugged replace the fuse then plug the injectors in one at a time to find the bad injector.

P0261 low reference voltage number 1 cylinder fuel injector.
P0264 low reference voltage number 2 cylinder fuel injector.
P0267 low reference voltage number 3 cylinder fuel injector.
P0270 low reference voltage number 4 cylinder fuel injector.

If the fuse is good and has power here is the location for the ground and how to replace the PCM in case, you need it in the images below. You can get a preprogrammed unit by searching Google or Ebay. Check out the images below and get back to me please.

Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Jan 26, 2023 at 12:42 PM
Advertisement