Cylinder #1 misfire-still occurring after spark and coil change! Help please!
#1
Cylinder #1 misfire-still occurring after spark and coil change! Help please!
PROBLEM:I've been having a little rough idle from time to time on my i30 when I am at a complete stop(at a stop light). The check engine light is not on so it should not be anything too serious. I went to autozone
for code checks and it said misfire on cylinder number 1.
WHAT I'VE DONE: CHANGED SPARK PLUG ON CYLINDER #1, CHANGED COIL PACK ON CYLINDER #1, CLEANED MY INTAKE AND THROTTLE BODY IN CASE, PROBLEM STILL OCCURS SOMETIMES.
COULD IT BE: Cylinder 1 FUEL INJECTOR that is the issue?
HELP NEEDED PLEASE THANKS FELLOW MEMBERS
for code checks and it said misfire on cylinder number 1.
WHAT I'VE DONE: CHANGED SPARK PLUG ON CYLINDER #1, CHANGED COIL PACK ON CYLINDER #1, CLEANED MY INTAKE AND THROTTLE BODY IN CASE, PROBLEM STILL OCCURS SOMETIMES.
COULD IT BE: Cylinder 1 FUEL INJECTOR that is the issue?
HELP NEEDED PLEASE THANKS FELLOW MEMBERS
#3
Throw some fuel injector cleaner in your tank and run 93 octane if you arnt already. Make sure all the wiring is good too. Its almost certainly your injector, theres a good chance injector cleaner will solve your woes but if it remains misfiring ~1 week after using the cleaner you should look into a new injector.
#4
Ok THANKS! I will get some fuel injector cleaner from autozone and see what happens! thanks! If it occurs again then i will just replace my fuel injector! Although removing the upper intake manifold is gonna suck !
#5
Throw some fuel injector cleaner in your tank and run 93 octane if you arnt already. Make sure all the wiring is good too. Its almost certainly your injector, theres a good chance injector cleaner will solve your woes but if it remains misfiring ~1 week after using the cleaner you should look into a new injector.
#6
Be sure to check and recheck the wiring too!
Edit: some recommend doing an oil change after using techron let alone two doses; it might simply be a myth that the cleaner can somehow get into the oil but it can never hurt to be safe!
Last edited by Slamrod; 09-22-2013 at 04:32 PM.
#7
Autozone (duralast) coil packs suck.
When one of the coil packs on my 96 went, I bought one at autozone. It actually worked!!! For three months. Then it failed. After going through two more autozone coil packs that didn't work, I gave up. The resistance on both of them was way off.
You are honestly better either going to the junk yard and getting a used Hanshin (off something older than a 99) or biting the bullet and going OEM. I picked up two used coil packs for $15 and they both work fine.
I don't know if the coil pack is your problem based on the limited description you gave, but I would bet it is if you put in an autozone coil pack and are still having the same problem.
When one of the coil packs on my 96 went, I bought one at autozone. It actually worked!!! For three months. Then it failed. After going through two more autozone coil packs that didn't work, I gave up. The resistance on both of them was way off.
You are honestly better either going to the junk yard and getting a used Hanshin (off something older than a 99) or biting the bullet and going OEM. I picked up two used coil packs for $15 and they both work fine.
I don't know if the coil pack is your problem based on the limited description you gave, but I would bet it is if you put in an autozone coil pack and are still having the same problem.
#8
Autozone (duralast) coil packs suck.
When one of the coil packs on my 96 went, I bought one at autozone. It actually worked!!! For three months. Then it failed. After going through two more autozone coil packs that didn't work, I gave up. The resistance on both of them was way off.
You are honestly better either going to the junk yard and getting a used Hanshin (off something older than a 99) or biting the bullet and going OEM. I picked up two used coil packs for $15 and they both work fine.
I don't know if the coil pack is your problem based on the limited description you gave, but I would bet it is if you put in an autozone coil pack and are still having the same problem.
When one of the coil packs on my 96 went, I bought one at autozone. It actually worked!!! For three months. Then it failed. After going through two more autozone coil packs that didn't work, I gave up. The resistance on both of them was way off.
You are honestly better either going to the junk yard and getting a used Hanshin (off something older than a 99) or biting the bullet and going OEM. I picked up two used coil packs for $15 and they both work fine.
I don't know if the coil pack is your problem based on the limited description you gave, but I would bet it is if you put in an autozone coil pack and are still having the same problem.
+1.
I havent heard anything good about AZ coils. I had a misfire issue and hit the Junkyard for a used one. 10 bucks.
Make sure to check voltages to the coil and fuel injector. Go to the yard and pull an injector. THe test is a simple resistance check and its pretty reliable test.
Do a SEARCH for injectors. There is a thread that shows a easier way of removing fuel injectors. You basically "pop" them out
EDIT:
And hell yea! that chevron techron be working miracles! lol. It could just be a dirty injector and that chevron will clean that right up
Last edited by cashoit; 09-23-2013 at 08:25 AM.
#9
I can do ya one better. Here is the thread for removing an injector easily:
http://forums.maxima.org/4th-generat...r-removal.html
EDIT:
If the car isnt misfiring under load then it might be the Idle Air control valve. The test for it is also a resistance test. Check that out too.
http://forums.maxima.org/4th-generat...r-removal.html
EDIT:
If the car isnt misfiring under load then it might be the Idle Air control valve. The test for it is also a resistance test. Check that out too.
#11
Sorry I forgot to keep you all updated! 93 octane with some fuel injector cleaner, my vq30de has been running good! No hesitations! its good to know it was just a fuel injector issue and not something too serious.
Again car is running fine, with no hesitations! if it persists I just will have to Change my fuel injector on cylinder #1!
Reached 260k miles recently ^_^ ! Thanks fellow members!
Hope my i30 will power through 300k miles!
Again car is running fine, with no hesitations! if it persists I just will have to Change my fuel injector on cylinder #1!
Reached 260k miles recently ^_^ ! Thanks fellow members!
Hope my i30 will power through 300k miles!
#15
Ford Taurus Problem (POSSIBLY WHAT COULD HAPPEN IN YOUR NISSAN)
- Cylinder misfire, customer replaces plugs,wires,coilpack.
TSB from ALLDATA - Piston is no good in cylinder. must replace Piston
- Cylinder misfire, customer replaces plugs,wires,coilpack.
TSB from ALLDATA - Piston is no good in cylinder. must replace Piston
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