Po300 code

2004 CHRYSLER SEBRING
159,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
MARKUS88
  • MEMBER
  • 2 POSTS
Car is randomly misfiring, idles rough, but drives okay at normal speeds. Do you know if this car has a known issue with this code p0 300? I have replaced plugs, wires, and air filter. Can the air intake throw this code? Or coils throttle body or crank shaft sensor?
Oct 13, 2018 at 6:41 AM
Advertisement
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.
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,144 POSTS
Hello,

This can be caused by low fuel pressure or a bad MAP sensor. Here is a guide to help you check the fuel pressure and a diagrams below to show you where the MAP in the diagrams below. Also I would service the throttle bore as well.

https://www.2carpros.com/articles/throttle-actuator-service

and

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Image (Click to enlarge)
Attached Media
Oct 15, 2018 at 12:40 PM