SPONSORED LINKS

Misfire

Tiny
JAMESPARKERAUTOMOTIVE
  • MEMBER
  • 2007 SUZUKI FORENZA
  • 77 MILES
07 suzuki forenza - replaced thermostat, head gasket, valve cover gasket, intake manifold gasket, tps, brake switch, spark plugs, ignition pack. Has newer water pump and timing belt. Getting CEL and misfire on 2 and 3, codes po300, po302, and po303 - having troubleshooting what to do next - please help
SPONSORED LINKS
Friday, May 17th, 2013 AT 11:29 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your fuel pressure should be 55-57 psi
Was this
answer
helpful?
Yes
No
Friday, May 17th, 2013 AT 12:21 PM
Tiny
JAMESPARKERAUTOMOTIVE
  • MEMBER
  • 2 POSTS
Did all pressure checks, vacuum, fuel, plugs, everything is good, of course did fuse checks too. Thanks
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, May 17th, 2013 AT 1:00 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then check compression and check coils for resistance.
Was this
answer
helpful?
Yes
No
-1
Friday, May 17th, 2013 AT 3:03 PM
Tiny
ALLPRO82
  • MEMBER
  • 1 POST
Suzuki's are different than most any other vehicle on this misfire thing. One of the most common things that fixes this problem is by purchasing a remanufactured throttle body with a blue or green dot on it and do a relearn procedure using only a tech 2 scanner. Yes, you have to buy the scanner too but they're only a couple hundred dollars.
Was this
answer
helpful?
Yes
No
Monday, January 2nd, 2023 AT 8:55 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Excellent addition to this thread! Please feel free to use 2CarPros anytime!
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, January 2nd, 2023 AT 2:04 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links