Question about 1999 Hyundai Accent

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Having multible misfires,misfire number 2 cyc,misfire number 3 cyc

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  • Hyundai Master
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Use some soapy water and spray the ignition wires/coil and see if the engine runs rough also look for spark coming out of ignition components. If so tune up vehicle replace plugs to recomended

Posted on Nov 15, 2009

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03jeep lbertyrandom missfire cyl 2 4 6check engine light flashing


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Jeep Liberty Check Engine Light/Misfire Due to Intake Valve Locks/Valves. ...Misfire cyc 4 and random cyc misfires, changed coil packs and plugs... sounds as if rod ... Light came on again (misfire on cylinder 4) - switched coil from 4 to 2. Light ...

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Nov 28, 2015 | Cars & Trucks

2 Answers

Mulitply cyclinder mis fire


Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly.

A misfire diagnostic code P0300 indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a random misfire code doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate and other symptoms may also be present.

If you need this or additional details about DTC Fault Codes, feel free to contact us clicking the links.

Hope this helps and have a nice day.

Oct 26, 2011 | Mitsubishi Outlander Sport Cars & Trucks

2 Answers

Hooked up computer to dodge ram 1500 4.7 liter magnum code came up p300 p301 what does this mean


P0300 is the random misfire code. P0301 is the misfire code for Cylinder #1. When was your last tune up? non platinum spark plugs should be replaced around 30-60k along with the wires. With platinum plugs that extends out to 100k. I would try a tune up first plugs and wires. Reasonably cheap fix that is a prevenitive maintenace item anyways. If you have just recently had a tune up or it does not solve your problem you most likely have a bad coil pack on cylinder#1.

Hope This Helps.

Zeppelinx12

Mar 16, 2011 | 2004 Dodge Ram 1500

1 Answer

Car was put on an computer and it say's that it has multiple mis fires


a multible misfire can be a few things, because it means the misfire is in more than 1 cylinder. first of all. check for a clogged or bad fuel injector, run a good injector cleaner to clean out. check plugs, wires, and make sure all coils are ok. then go from there. maybe the plugs and wires will fix it! have a good day !!

Dec 19, 2010 | Nissan Altima Cars & Trucks

1 Answer

Auto question,I have an 96 Dodge Ram w/ 5.2L V8 eng.the problem is dtc codes P0300 and P0301,random multible cylinder misfire detected,and cylinder #1 misfire detected.Ive replaced the spark plugs, plug...


I would check the injector. Pull the plug and check for corrosion. Use on ohm meter to check the injector. The resistance should be 11 to 15 ohms. Check it against another injector. they should be close. You can also check the injector plug. best to use is a noid light, but you can use the meter. set it to dc volts to check. the numbers should jump everytime it fires. since you got a 300 and 301 misfire it tells me that you have an intermitant misfire in cylinder 1. The other sensors are still good don't replace them. The coil is still good, because when it starts to go, it will have misfires on all cylinders or will not work at all. The crank sensor is the one that detects the misfire, again don't replace it because it's not bad, it's just doing it's job. If the injector and harness check out good then I would start check the cylinder for compression and mechanical problems

Nov 24, 2010 | 1996 Dodge Ram 1500 Club Cab

3 Answers

My S-10 keeps giving a P0300 dtc. Can't figure out what is setting this code. Usually misfires at idle. Any suggestions?


if u change plug wires ,coils ,plugs and still having problems check the injecter with a pulse light the one that dont pulse the pcm is bad are broke wire if all of them are pulseing then change the injecter.had the same problem on a 2000 s10 2.2

Apr 27, 2010 | 2000 Chevrolet S-10

1 Answer

Miss fire cyc 8 changed plug and coil pack scan tool still says miss fire number 8


check compression, then fuel injector. or vac leak. what kind of scan tool. very few will give live misfire data. you are sure you replaced number 8, drivers side rear?

Oct 21, 2009 | 2001 Lincoln Navigator

1 Answer

Misfire on cyclinder


I would check the fuel injector on number 2 cylinder. If the injecter is dirty or not functioning properly it may give you the symptom of an ignition misfire.

Aug 13, 2009 | 2000 GMC New Sierra 1500

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