Cylinder misfire

Tiny
SMILESMJ
  • MEMBER
  • 2010 HONDA FIT
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 144,000 MILES
Check engine light came on I checked it with my code readers says cylinder 1, 2, 3, & 4 misfire so I change all spark plugs but now the check engine light is back on with the same code. But this time it says cylinder 1, 2, 3, & 4 misfire pending. Then at the end it says cylinder 4 misfire permanent. Please help me. THANK YOU
Do you
have the same problem?
Yes
No
Friday, January 3rd, 2014 AT 10:58 AM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Have the ignition coils and fuel pressure checked.

Check out this guide

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please run down this guide and report back.
Was this
answer
helpful?
Yes
No
+2
Friday, January 3rd, 2014 AT 2:27 PM
Tiny
JAYRANDALL
  • MEMBER
  • 9 POSTS
  • 2007 HONDA FIT
  • 103,000 MILES
RE: 2007 Honda Fit Sport, 1.5l, 4 cyl.

I've been having an issue with misfiring on this car. Codes are P0300-P0304. I've changed the spark plugs, air filter, and even reduced the gap on the spark plugs thinking the issue was possibly bad ignition coils. I tested all 4 ignition coils on the car and each produced a nice and consistent spark. The spark plugs from cylinder 3 appear to have possible burning type discoloration on them, but other than that, all plugs are dry and unremarkable. I'm not quite sure what to do. It's my only car, so I can't afford not to have it run. Possibly a head gasket? Is there a way to check that before buying a new one? Maybe it's the fuel injectors? Fuel filter?

Please let me know what you think.

The first codes to pop up are 0301, 0302, and 0300 in that order then the rest pop up with a little drive time. Those come on just sitting in my driveway.
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You replaced the plugs but the coils may still be bad. I would look there first.

Roy
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
JAYRANDALL
  • MEMBER
  • 9 POSTS
I checked the coils. All seem to be functioning normally. I'm about 99% sure it's the head gasket.
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Coils can break down under load.

Head gasket? What made you think it is this? Very unlikely.

Roy
Was this
answer
helpful?
Yes
No
+1
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
MARC-ERICGAGNON
  • MEMBER
  • 1 POST
Hi, I have the same problem on my Fit :(
Did you find what is causing that?

I took my car to the dealer.
They suspected coils but sais that if one's broken, it should not be intermittent. Spark plug seems ok even if they are showing some usure. They were suspecting motor valves; they founded some exhaust valves too tight. Paid 180$ for nothing; my problem still there.

How a head gasket can cause misfire?

Can it be fuel filter, fuel pumps or injector?

Can it be timing chain or belt ; don't know the type in that model?
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
SILVERBULLET81
  • MEMBER
  • 2 POSTS
  • 2008 HONDA FIT
  • 1.5L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 134,000 MILES
Vehicle started driving at higher RPMs than usual while cruising and accelerating, but especially having a hard time while accelerating. Shaky/random jerks from engine as well. Check engine light came on. Brought it to Autozone. All misfire codes. Changed the spark plugs, thinking that was the obvious thing to do. That didn't solve the problem. Brought the car in to the shop. The owner told me I need a new ignition coil on cylinder 2. Did that. Paid him $300 (found out later it costs about $30). Ran good for 2 weeks, then engine light came back on again and rpms also went back up to higher than usual. Also, once again. All misfire codes for the engine light.P0301, P0302, P0304, P0300, and P0420. Cylinder 2 (the coil he changed) is in that misfire code. I pulled the ignition coils out myself, I have a multimeter, but not sure how to test the 3 prongs. One other thing I noticed is the smell of gasoline from Coils 1 and 4. I don't know if it should smell gasoline or not from the coils or if this could be a clue to anything. Coils 2 and 3 don't smell gasoline at all. I would like to be able to fix the problem myself if it is not too difficult because I have had a number of people tell me the shop is known to way overcharge people. Any help would be greatly appreciated.
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
SILVERBULLET81
  • MEMBER
  • 2 POSTS
Also, if a certain tool or instrument can help with the problem I can go to AutoZone and get it. Just need to know what to get.
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:14 PM (Merged)
Tiny
TY ANDERSON
  • MECHANIC
  • 684 POSTS
P0301, P0302, P0304, P0300 are all misfire codes meaning something is disrupting the air/fuel mixture in cylinder: 1, 2 and 4. P0300 is a random misfire
P0420 is the vehicle's computer has detected the catalytic converter is no longer reducing emissions out the tailpipe (it could also be related to the oxygen sensor cause this code). This could be due to the misfire damaging the catalyst.

I want you to do some basic checks. Check the engine oil level, transmission oil level (after driving awhile then checking fluid level with the engine off), and unbolt the one bolt on each ignition coil. Start the engine look at each ignition coil (use a flashlight) do any of them get push up or move? If not, good. If it does move and you can smell a fuel smell or an exhaust odor then suspect that spark plug for looseness.
If you hear a ticking noise when first starting (gets louder with engine speed) the engine when cold you might have a exhaust leak causing the odor.

What spark plugs did you use (brand and style like platinum, iridium, etc.)

There are a few components that can cause a misfire. Typically, on Hondas a misfire is cause by the spark plugs, spark plugs being loose, Ignition coils, and valve lash clearance (there is more components). If the spark plugs are of good quality then it is probably safe to say the plugs are not causing the misfire. If the shop replaced cylinder 2 coil its probably not that coil causing a misfire.
Answer my question and do those checks I mentioned and get back to me. I threw a lot at you. So, let me know and we will go from here.
Was this
answer
helpful?
Yes
No
-1
Friday, March 1st, 2019 AT 8:14 PM (Merged)

Please login or register to post a reply.

Sponsored links