Question about 2001 Kia Rio

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Random misfire 2 3 on a 2001 kia rio check engine light comes on run rough did tune up was fine for a week then started again to back they fixed it now doing it again HELP!!!!!!!!!!

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Posted on Jan 02, 2017

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SOURCE: kia rio battery light is on when car is running!

You May Just Want To Start By Removing The Battery Terminals And Cleaning Them With A Wire Brush And Baking Soda. It Will Reset Your Dash Lights As Well. A Small Short Can Drain A Battery In A Night.

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: Kia Rio Check Engine Light

check the fuel line hose near the fuel regulator for wear as they tend to leak or corrode causing a gas smell inside the car. My 2000 Kia Sportage just had the same problem with the gas smell inside the car.

Posted on Jan 24, 2009

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SOURCE: 2002 Kia Rio runs rough when idling

well spend some change and have a simple tune-up.  Plugs and filters and readjust the idle.

Posted on Apr 01, 2009

  • 85 Answers

SOURCE: 2002 kia sedona 3.5l has rough idle replaced plugs wires and coil

this vehicle has coil packs for the ignition correct? have you ran the engine at night with all surrounding lights outs so its really dark. spray a mist of water on the coil packs and spark plug wires to see if you have spark/voltage leaks jumping out from them. sometimes the tiny sparks will be so fine and skinny you can barely see them so it needs to be dark. hope this helps your trouble shooting. a coil pack could have such a fine crack for the voltage to leak from that you cant see it.

Posted on Jun 13, 2009

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SOURCE: 2003 kia sedona rough idle--check engine light

The only thingI can say is that there is a problem that is affecting the entire bank on one side of the engine. This automatcally eliminates things like Mass Air Flow (MAF) sensor, Manifold Absolute Pressure (MAP) sensor, Throttle Position Sensor (TPS), Crankshaft Position Sensor (CKP) etc. because failure of these things will affect BOTH banks, not one.

I have seen things like a totally skewed upstream Oxygen sensor on one side cause misfire codes for all cylinders on one bank. It is pretty rare, but it CAN happen. This can usually be verified by graphing the O2 Sensor PIDs for both sensors and comparing the graphs.

If the scaner data should be showing SOMETHING that is not right on one side - i.e. fuel trims, injector pulse width, etc.
I would also be looking into the possibility of one of the cams on that side to be 1 tooth off of the correct timing. This can cause problems while the engine is running and will not necessarily show up on a cranking compression test. One way to verify this is to perform a RUNNING compression test. With a warmed-up engine, pull one spark plug out at a time and check the compression with the engine running. Do BOTH sides, so you can compare the readings. If the entire 1-3-5 bank is lower than the 2-4-6 bank, then valve timing is most likely the cause.

Posted on Oct 15, 2011

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Jan 24, 2016 | Cars & Trucks

1 Answer

Random multiple misfire P0300, P0302, P0304 on 2006 Kia Rio

A competent mechanic will check all probable causes associated with these DTC codes.
Code P0300: Random-Multiple misfire detected. Probable causes:
1. Vacuum leaks, damaged hoses, or improper routing
2. Fuel contamination
3. Ignition system - Ignition module, coil, spark plugs and wires
4. Fuel system
Code P0302: Cylinder 2 misfire detected. Probable causes:
1. Control unit software in need of updating
2. Faulty PCM or ECM
3. Faulty fuel injector
4. Ignition system
5. Fuel system
Code 0304: Cylinder 4 misfire detected. Probable causes:
1. Control unit software in need of updating
2. Faulty PCM or ECM
3. Faulty fuel injector
4. Ignition system
5. Fuel system

Be sure the invoice enumerates all of these probable causes as having been checked. Also, some of the replacement parts installed earlier may be faulty.

Jan 19, 2014 | Kia Cars & Trucks

1 Answer

Mulitple random missfire and P2096

non OEM spark plugs can cause random misfire codes another possibility is a bad crankshaft sensor and or mass air flow sensor is dirty

Nov 15, 2013 | 2006 Kia Rio

1 Answer

Check engine light came on last week. They said it was the heated oxygen sensor. I had it replaced and today the light is on again. The code at Auto Zone is P2096 and P0300. It says P0300/P0301/P0302...

Yes a misfire could cause a false 02 code. As far as why it's misfiring could be a plug and wire issue but hard to say without looking at it

Oct 23, 2013 | 2006 Kia Rio

1 Answer

2006 kia rio misfire

Could be a weak coil on number 4 cyl.
Switch coils between 3 and 4 and see if the code now reads #3 misfire,then you will know you need a coil.
Maybe the check engine light will stay off after the switch.

May 24, 2017 | 2005 Kia Rio

1 Answer

Check engine light on, (code 2314 (misfire)), what can cause this?

Go HERE to read about engine misfire diagnosis and repair.

Sep 20, 2012 | 2006 Dodge Stratus

1 Answer


Take it to another shop and have them do a compression check. If the compression is low, you have found the problem. If the compression is the same as the other cylinders, trade the fuel injector at that cylinder with another cylinder and see if the problem moves. If the problem moves (misfire code in different hole), the injector is bad. If the problem didn't move, and the compression is fine, then you have a vacuum leak on the intake runner to that cylinder, possibly the intake gasket. Print this and give it to your new mechanic.

Apr 19, 2011 | 2005 Kia Rio

2 Answers

2002 Kia Rio runs rough when idling

well spend some change and have a simple tune-up.  Plugs and filters and readjust the idle.

Mar 14, 2009 | 2002 Kia Rio

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