Question about 2001 Dodge Ram Maxi

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Check engine light

I have a code that come up as p0305 can you please tell me what this mean Its not on now

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Code p0305 is a misfire on cylinder #5.

Symptoms may include:

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

Causes:
A code P0305 may mean that one or more of the following has happened:

Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer


It is very possible it was just a bad tank of gas, as this has happened to me personally when using a particular brand.


Once the computer cycles through, it sees the problem has been corrected, and turns the light off. It will still be in the memory though.


I hope this helps.





Posted on May 25, 2008

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What is order of troubleshoot for cylinder misfire P305?


Possible causes
- Faulty spark plug 5
- Clogged or faulty fuel injector 5
- Faulty ignition coil 5
- Fuel injector 5 harness is open or shorted
- Fuel injector 5 circuit poor electrical connection
- Ignition coil 5 harness is open or shorted
- Ignition coil 5 circuit poor electrical connection
- Insufficient cylinder 5 compression
- Incorrect fuel pressure
- Intake air leak
What does this mean? What does this mean?
Tech notes
The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 5. If the problem persist more tests needs to be done to diagnose problem, see "Possible Causes"
What does this mean? What does this mean?
When is the code detected?
Engine Cylinder 5 is Misfiring.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
P0305 Jaguar Description

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.

Read more:
P0305 Jaguar Cylinder 5 Misfire Detected

May 06, 2015 | 2007 Jaguar X-Type 3.0 Sedan

1 Answer

Lexus engine check code P0305


All of these codes are misfire codes.clicking sound is most likely spark jump from plug wires to metal(head,block,valve cover etc.)

Sep 10, 2012 | 2002 Lexus ES 300

1 Answer

What could code #P0305 be for a Volvo 1998 V70 XC


DTC P0305 Code - Cylinder #5 Misfire Detected
A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5.

Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present. Other tips to solve it in the previous fault code link.

A code P0305 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa.

Oct 31, 2011 | 1998 Volvo V70

1 Answer

1998 Volvo v70 xc turbo code reading p0305 what could it be


DTC P0305 Code - Cylinder #5 Misfire Detected
A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5.

Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present. Other tips to solve it in the previous fault code link.

A code P0305 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa.

Oct 31, 2011 | 1998 Volvo V70

1 Answer

What Could the problem be with a P0305 reading?


DTC P0305 Code - Cylinder #5 Misfire Detected
A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5.

Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present. Other tips to solve it in the previous fault code link.

A code P0305 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa.

Oct 31, 2011 | 2000 Volvo V70

1 Answer

Engine lugs and misses several codes P0171 ,P0305,Po430,P0305


your code point to your truck is running lean
your codes report that the o2 sensors are sending this code
this does not mean that your o2 is bad
i would look to your MAP sensor and also check your vacuum to the MAP
you may get buy just cleaning it with brake cleaner
but make sure it is dry before you put it back in
if that don't work i would replace the MAP
tell me how you make out

Jan 22, 2011 | 2006 Ford F-150

3 Answers

My check engine light is on and I have an error code of p0171 please tell me what is this error code and the resolution I changed all 8 coils and spark plugs and several days later i received and error...


A code P0171 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor
P0305 is cylinder 5 misfire (note if u get this code u have a misfire period. might not be able to tell by listening to or looking at engine but it there) ( if you hooked it up to a computer and monitor that cyl you would see the miss )


first thing i would do is test cylinder 5 fuel injector
to do this unplug cylinder 5 injector
then using a multimeter (if don't have one borrow one or buy a cheap one ) check the resistance of the injector should be around 12-15 ohms but very for different motors check one of the other injectors and if cylinder 5 reads close to other injectors it fine but if reads high or low replace it

second check for a vacuum leak
get some carburetor cleaner spray around intake gaskets vacuum lines etc. if idle changes u have vacuum leak there

thirdly clean the mass air flow sensor the make special spray for it which i highly recommend and should be under $5.00 the parts store u can use carburetor cleaner on it but not recommend because the carb cleaner can leave a residue on senor that will destroy it

if all above fails do a compression check on motor if cyl 5 reads lower than all others then there internal damage (bad rings, or burnt value )

Dec 21, 2010 | Ford Expedition Cars & Trucks

1 Answer

Dodge obd code p0305


The DTC (Data Trouble Code) P0305 is the generic OBD-II DTC for "Cylinder 5 Mis-fire Detected", and it means that the OBD-II control unit has detected a problem with the #5 cylinder.

The problem could be a faulty spark plug, or a spark plug wire for the #5 cylinder, or the coil for that cylinder could be faulty (2.7 liter), or the distributor or distributor cap could be faulty (3.0 liter), or the fuel injector for the #5 cylinder could be faulty.

Before you look for any electrical problems causing the mis-fire on the #5 cylinder, first do a compression check to be certain that the mis-fire is not caused by a mechanical problem.

Here are the firing order diagrams for the 2.7 and the 3.0 liter enginesto help assist you.


2.7 liter

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3.0 liter

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Jul 03, 2010 | 2002 Dodge Stratus

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