Codes P0308-P0358

2010 MERCURY
160,000 MILES • 4.6L • V8 • RWD • AUTOMATIC
Avatar
ABUIBRAHIM
  • MEMBER
  • 13 POSTS
Gents,
what is the difference between code P0308 and P0358?
Jul 3, 2016 at 2:03 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
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
P0308 is cylinder eight misfire so the computer detects a misfire on cylinder eight. P0358 is primary secondary ignition circuit fault. So does the engine have a constant misfire? If so see if number eight coil has spark? My guess would be possibly a bad coil for cylinder number eight.
Jul 3, 2016 at 3:26 PM
Advertisement
Avatar
ABUIBRAHIM
  • MEMBER
  • 13 POSTS
Thanks for your answer. How can locate coil 8 for v8 ford 4.6L?
Jul 3, 2016 at 3:46 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
The arrow means the front of the engine.
Image (Click to enlarge)
Attached Media
Jul 3, 2016 at 3:58 PM
Avatar
ABUIBRAHIM
  • MEMBER
  • 13 POSTS
Thanks a lot.
Jul 3, 2016 at 4:02 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
You are welcome let me know what you find.
Jul 3, 2016 at 4:03 PM
Avatar
ABUIBRAHIM
  • MEMBER
  • 13 POSTS
Hi again, i found a coil wire is bad , i fixed and the code is go away! Thanks
Jul 8, 2016 at 7:20 AM
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,215 POSTS
You are welcome, please use 2CarPros anytime, we are here to help.

Best, Ken
Jul 8, 2016 at 6:37 PM