Accent MC (2006-11) :: 2008 - Multiple Cylinder Misfire Codes
Nov 1, 2016
We bought the car used for my youngest daughter and it had a couple of codes in it. 1st was the o2 sensor.. easy fix, grabbed an OEM one and stuck it in. Then there was the Cyl 2/ multiple cyl misfire codes that kept getting thrown.
I've seen a bunch of post about people pretty much doing the same things I started out with and still having a problem.....
1) Swapped around all the coils.. still got a #2 misfire... So, coils are good.
2) Swapped in NGK Platinum plugs with a .032 gap.... still getting misfire.
3) Replaced the crank shaft position sensor...... still misfire
4) Noticed that there was an Ebay injector in the #2 cyl...... when I pulled the plugs, that cyl was running a little lean..... bought an OEM injector to go back in there...... still getting misfire
SO, I tried using a propane torch head and putting out gas around the intake to search for vacuum leak and got no response....... so, for the heck of it, I went old school and grabbed a can of starting fluid and started spraying it on the intake around where it bolts to head... bam... found a vacuum leak on #2 cyl....... ordered an intake gasket off of ebay, spent about 3 hours on it pulling the intake and replacing the gasket,( the bolts had loosened up over time and there were small tears in the gasket allowing it to suck air) .. put the new gasket on, cleared the codes and it's been running perfect ever since.
Check for a vacuum leak where the intake manifold bolts to the head... might save time and money.
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My car has been really acting up lately (AGAIN) so I took it in to have it looked at and they came back and told me it had multiple cylinder misfire, and they wanted like $1200 to fix it. What in the world does that mean and what is entailed in fixing it? They mentioned doing a full maintenance on it.
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I guess misfires are a rite of passage for these vehicles. I purchased it only a week ago. Welcome to Hyundai...
The car has 53k kms. It's throwing P0300 and P030X on all cylinders. There was one instance of P0128. The engine runs smoothly and doesn't seem to down on power, although I have nothing to compare it to. The only performance issue is that it acts as if there is a rev limiter at 6k rpm. It sputters and stops pulling above 6k. Strangely, it doesn't throw the codes under load. The light flashes while it's running steady-state.
I pulled the plugs and they appeared to be in excellent condition with no erosion of the electrodes. The ash is slightly more white than I would expect, making me wonder about it being excessively lean. I called the dealer. They told me that coils are problematic. Replacing the coils made no difference.
That lead me here. I found the thread "Check engine light flashes then stays solid," which referenced the ECM update.
Interestingly, of the codes mentioned on the TSB, the car is having all but the last two.
- P0300: Random/Multiple Cylinder Misfire Detected.
- P0301: Cylinder 1 - Misfire Detected.
- P0302: Cylinder 2 - Misfire Detected.
- P0303: Cylinder 3 - Misfire Detected.
- P0304: Cylinder 4 - Misfire Detected.
- P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature).
- P0328: Knock Sensor 1 Circuit High Input.
- P0461: Fuel Level Sensor A Circuit Range/Performance.
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My dads truck started misfiring last week, first thing i did was scan the codes and got p0303, p0304, p0305, p0306, and p0308. Its an 08 F-350 5.4...already changed out the spark plugs and the same codes came back. I decided to do some further testing and so far all coils had spark as well as 12.4 volts going to each. I did check the switching signal and that was present as well.
Moved on to the injectors and i checked each connector with my noid lights and it flashed on all cylinders. Did a resistance check on each injector and they all registered 12.4 ohms. We did switch some coils around and all the same cylinders misfire. My next step is to do a compression test.
My biggest question is if there are any common problems with these engines besides the coils, by the way this truck has the brown coil boots and the spark plugs that dont break in the engine.
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My 2011 Accent's engine light came on recently. The mechanic said it was a cylinder 3 misfire and recommend changing the spark plug and coil pack for that cylinder. We did that over the weekend. Now the light is back on and has read 5 codes in the past 12 hours (4 at one time). They are P0303, P0304, P0003, P0403, and P0100. I have looked the codes up and can't discern if any could be caused by one main issue. About a month ago it read a code for the oxy sensor, but it went away and never came back.
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Car threw a multiple cylinder misfire, changed plugs, wires, and then coil packs. Code keeps coming back.
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I recently found these codes. My car is APR 1+. The car seems to run fine so I'm not sure what is going on. I changed the plugs at ~60K miles and now have 72K miles.
Address 01: Engine (CRZ) Labels: 06F-907-115-CDL.clb
Part No SW: 5K0 907 115 M HW: 8P0 907 115 B
Component: 2.0l R4/4V TFSI 0020
Revision: 5BH20--- Serial number:
Coding: 0403010A180F0160
[Code] ....
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ODB2 Code: P0300 - Multiple Miss-fire
I have an issue with my Jeep Liberty. It started idling rough with no error codes. about a week later it through the Multiple misfire code. I started by replacing the spark plugs. The old ones were from 20K miles ago and still looked good. Replaced them anyway. I still had the code. I put K44 fuel injector cleaner into the tank and drove it home (2 miles.) The next morning I started it and went in side because I had forgotten something. I came out to extremely thick black smoke. It went away after about 2 minutes, the computer code cleared, and the engine idled perfectly. About 2000 miles later the car is once again idling poorly. I added K44 again and for that tank of gas it ran fine, no code. Once new gas was added it threw the same error code and idles very roughly.
So here are some basic info pieces:
1. 8 tanks of gas from 8 different locations.
2. Adding K44 has shown a direct improvement both times, but more significant the 1st time.
3. New spark plugs
4. New coil packs
5. 2005 Jeep Liberty - 3.7L V6 at 99,872 miles
6. Hopefully unrelated is that the car has a small radiator fluid leak I haven't found. It requires 1/2 gallon every 2K miles or so.
There is no knocking sound, it just sounds like there isn't enough gas. Car responds fine to accelerator. Above 10mph car seems to drive smoothly.
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I have a 2000 lc 1.5l ... I just rebuilt the motor machine shop work and all it Will start and run for 3 seconds and then die. If I hold the gas pedal it will run but sound rough and as soon as you let go it dies I have been able to get codes multiple misfires, misfire cylinder 1, misfire cylinder 2, and misfire cylinder 4 I have put brand new plugs (copper core ngk), wires coils, crank sensor, cam sensor, iac, tps, maf and the injectors all have new orings it also has ntk o2 sensors that might have 1000 miles on them...
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So on monday the following error codes appeared on my car. What needs to be replaced off the error codes?
P0300Random/Multiple Cylinder Misfire Detected2014-02-04 13:48:29
P0301Cylinder 1 Misfire Detected2014-02-04 13:48:29
P2030No Description Available2014-02-04 13:48:29
P3030No Description Available2014-02-04 13:48:29
C0033No Description Available2014-02-04 13:48:29
P0603Internal Control Module Keep Alive Memory (KAM) Error2014-02-04 13:48:29
C1400No Description Available2014-02-04 13:48:29
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This morning my son started the 2008 Accent and it ran really bad, he shut if off started it again and still ran really bad and check engine light started to flash. Shut it off and ran for the bus to school.
Went and picked up a OBD scanner and found a cylinder 1 misfire. Tried to start it and had a really hard time and when it did start ran like crap and smelled gas. Checked the codes again and now got Multiple cylinder misfires, cylinder 4 misfire and cylinder 1 misfire.
Pulled the engine cover to pull the coils and plugs and I find a ton of mouse crap. No signs of any chewed wires or anything that I could see. Drove it to the local Hyundai dealer tonight because I am worried that it may not be the coil packs. Drove OK to the dealer. My brother is the service manager at the local Mazda dealer and he sees a lot of mouse damage. Said I should put a couple of old socks with moth balls in the engine compartment to deter the mice.
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I have a 2008 Hyundai Accent that is giving me one heck of a headache. I keep getting a code for number 1 cylinder misfire. When you start it up it runs fine for a while then the CEL will flash and it will start running rough. As soon as I shut it off and restart it, it runs fine. I even experimented with it this morning on the way to work. It started running rough doing 60, I put it in neutral, turned the car off and then right back on, put it back in gear. It ran fine the rest of the way to work. I have swapped coil packs, fuel injectors, spark plugs, and have even hang tested another ECM. Still number 1 cylinder misfire.
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I'm having problems with my accent, is been running not so good , and had a check engine light, indicating a misfire cylinder 3 and 4, i was told to put a can of Seafoam on the gas tank, but that didn't work. I replace the spark plugs (not the wire) and air filter and still running bad. Is not happening all the time (check engine light) but you can tell is running ruff at all time. I don't know if I need to change the spark plugs wires. I don't think is the spark plugs wire, they don't look bad or damage.
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I have a 2008 Accent Hatchback with 130k+ miles. I got a pretty good deal on it from a fellow who maintained pretty good service and had installed an aftermarket air intake (well, he removed the stock one and put a small, roughly 4" diameter, filter that is open to engine compartment) and all looked pretty good.
At the first fueling, I noticed issue - I had to rev motor for about 30-45 seconds to get it to stay started. Figuring it was an evap issue, I replaced purge valve and gas cap (cap was obviously loose). This did not correct the problem. I did not worry about it to much because with that exception, the car drove wonderfully back and forth to work, etc.....until recently.
Car started "jumping" and being sluggish. Codes came back as random misfire. Plugs and wires are only a few months old. I wondered if it had something to do with fuel so I ordered filter and pump (figured i would replace both since I was going to be pulling top off tank anyways) - this is going to be my project for the day.
Here is the kicker though : I noticed in the past day or so that car has been okay on my short commute to work in the morning and back home in evening. When I went to store midday and was parked on HOT pavement, I had issues right away. Car is very temperamental as the temperature increases. My wife also noted that last night while driving about 15 minutes away that the engine wall was hot enough to be uncomfortable to the touch of her bare foot and issues were abundant.
Once I get to speed in 5th gear, I seem to be okay, no issues (yet). It is primarily during acceleration and mostly during low RPM (low for this car anyways which seems to run best at 2500+).
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I have a '06 Passat 3.6. I had the intake and valve cover off the other day and when I put it back together it started missing bad. The code it is throwing is a P0300/ random/multiple engine cylinder misfire. What is wrong?
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I have a 2005 F-150 W/ 5.4 triton, and am having multiple codes. They are:
P0172- System to rich(Bank 1),
P0174- System to lean(Bank 2),
P0300- Random misfire,
P0303- Cylinder # 3 misfire detected,
P0304- Cylinder #4 msfire detected.
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I have a 2007 Hyundai Accent GLS. I just got it from a used car dealership (local) and it runs perfectly. It had a misfire code when i first got it, for all cylinders plus the p0300. It went away when i started the engine again, and didnt come back til a month later (Now). now it wont go away.
I went to advance auto and had them use their OBD2 reader for a trouble code and i got p0300, p0301, p0303, p0304. No other codes present.
I am not feeling anything bad, and from what I am told, a misfire feels like a hard shift. This is of course after getting the plugs and wires changes as well as an oil change. Standard preventative maintenance.
The mechanic used OEM parts got from local parts shop. i think the OEM plugs are the copper ones. I would have preferred iridium as they arent that much more expensive but I don't want to pay for another plug change.
The only symptoms I can think of, is that according to google, I should get around 380 miles to a full tank (11.9 capacity, 32 mpg city). I am only getting 280 from full tank to gas light.
I have also gone through a lot of oil. I checked the dipstick and it was below the low line, so i bought a quart of high mileage oil (same exact brand and type of oil that i gave to the mechanic to use) and it went to just above the full line. This was at around 1500 miles after oil change.
After visiting multiple sites about misfires, i found a few things that caught my attention. One is a site called auto service professional, which talks about the OCV for the MC accent. A lot of sites also recommend gaping the plugs at .035.
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What is the easiest fix on this and what is the worse case scenario?
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I am currently having an issue with my 07 Accent misfiring on cylinder 1. So far, I have changed the spark plugs, which were due anyway, and checked the coil pack. Every coil on each cylinder reads 0.8 ohms, so I am going on the assumption that they are ok. Didn't see any issue with the connector end inside the boot. However, when I changed the plugs, I discovered that I had oil in the plug tubes on 1 and 4. So I changed the valve cover gasket and tube rings and cleaned all oil residue from the packs. I have also checked the short coil wire harness right on the packs themselves. Have not tried to check further because I don't know which pins that harness goes to on which ECM connector. I still have the misfire, and I'm not sure where to go next. I was thinking compression or fuel injector. I don't have a compression tester, and I assume the only way I can check the injector is to swap it with another cylinder?
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2007 accent randomly starts missing. throws cyl.3 missfire. replaced all plugs and cyl.3 coilpak.
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I have a 2009 Accent. It has a misfire on cyl 3. I've changed the spark plugs... no change. I swapped around the coils... no change. The misfire stays on cyl 3. What are my next steps to isolate and resolve this misfire?
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