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2014 Kia Soul+
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Discussion Starter #1
The Engine light stayed on (no flashing) after slightly rough start. Dealer says P0300 code which is a misfiring cylinder. He says one or more fuel injectors must be replaced (over $1000 if all 4). He says fuel injectors cannot be cleaned. I had fuel induction cleaning service done there 6 weeks ago due to rough start, ( no engine light). Does this sound right to you? Can fuel injectors not be cleaned? How can I be sure the fuel injectors are causing the misfiring? Any knowledgeable thoughts would be most appreciated. Thank you.
 

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The Engine light stayed on (no flashing) after slightly rough start. Dealer says P0300 code which is a misfiring cylinder. He says one or more fuel injectors must be replaced (over $1000 if all 4). He says fuel injectors cannot be cleaned. I had fuel induction cleaning service done there 6 weeks ago due to rough start, ( no engine light). Does this sound right to you? Can fuel injectors not be cleaned? How can I be sure the fuel injectors are causing the misfiring? Any knowledgeable thoughts would be most appreciated. Thank you.
There are places that clean injectors, but Dealerships don't usually - you might have better luck with a specialist independent shop.

There's risks, but you can test the injectors - some folks lift them and put them in jars, still connected electrically and to the rail, then crank and see if their pattern and volume is good.




 

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09 kia spectra ex,04 Neon,04 Chry. T&C, 08 Pontiac G6 gt
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Unless you know you had gotten a bad fillup of fuel, I would suspect the much more common fault of a dying crankshaft position sensor. OR a VVT problem IF you have not been faithfully changing the engine oil and filter every 5k miles. P0300 is a generic code(nonspecific) to a particular part causing the misfire.
This is a classic case of proper and complete diagnostic checks to be done BEFORE jumping at changing out parts in HOPES of the "fix".
 
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Discussion Starter #6 (Edited by Moderator)
77k miles. No, I have not had the plugs or coils changed. They have not recommended it.


I know the 1.6 recommends ever 50k for plugs, but I have fouled them out at 70k and it acts as you described, exactly as you described.

Hmmm. Well, I would think they would have checked them, but I think they rely heavily on what the computer readout says.

but it did start with a flashing cel and lose of power (subtle), then a constant cel and rough (obvious). from the first flash to the constant was less then 10mi.

Unless you know you had gotten a bad fillup of fuel, I would suspect the much more common fault of a dying crankshaft position sensor. OR a VVT problem IF you have not been faithfully changing the engine oil and filter every 5k miles. P0300 is a generic code(nonspecific) to a particular part causing the misfire.
This is a classic case of proper and complete diagnostic checks to be done BEFORE jumping at changing out parts in HOPES of the "fix".
I have been changing oil and filter every 7k miles or fewer, as 7500 miles is recommended, per manual. Prior to a couple of months ago, I had been using supermarket gas, as the Chevron charged 30-50 cents more per gallon. But due to rough starting, I have switched to Chevron.
 

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2013 Kia Rio Sedan Auto 1.6 Turbo
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77k miles. No, I have not had the plugs or coils changed. They have not recommended it.


I know the 1.6 recommends ever 50k for plugs, but I have fouled them out at 70k and it acts as you described, exactly as you described.

Hmmm. Well, I would think they would have checked them, but I think they rely heavily on what the computer readout says.

but it did start with a flashing cel and lose of power (subtle), then a constant cel and rough (obvious). from the first flash to the constant was less then 10mi.


I have been changing oil and filter every 7k miles or fewer, as 7500 miles is recommended, per manual. Prior to a couple of months ago, I had been using supermarket gas, as the Chevron charged 30-50 cents more per gallon. But due to rough starting, I have switched to Chevron.
Just my 2 cents, from experience. I have put 150k mi on a 1.6 gamma cvvt in a 2013 Rio. I know the 1.6 gamma was n a lot of Souls but they had other options. You are due for the plugs anyway, and I could not stress more, I had the exact same problem at 120k which was 70k on the second set of plugs. I mean exact.
 

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77k miles. No, I have not had the plugs or coils changed. They have not recommended it.


I know the 1.6 recommends ever 50k for plugs, but I have fouled them out at 70k and it acts as you described, exactly as you described.

Hmmm. Well, I would think they would have checked them, but I think they rely heavily on what the computer readout says.

but it did start with a flashing cel and lose of power (subtle), then a constant cel and rough (obvious). from the first flash to the constant was less then 10mi.


I have been changing oil and filter every 7k miles or fewer, as 7500 miles is recommended, per manual. Prior to a couple of months ago, I had been using supermarket gas, as the Chevron charged 30-50 cents more per gallon. But due to rough starting, I have switched to Chevron.
This info would have served much better purposes for good responses to you IF it had been included in your first posting. YES member rio-t may have "hit" the button on the problem. I could only SPECULATE from the lack of info offered initially.
 
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The chances of injectors being bad at 70k is slim, and dealerships love money. Seems like injectors would be covered under the 10 year / 100k mi warranty anyway, but I'm sure they didn't mention that, because they want you to pay, then bill kia under warranty and 2x the money for nothing. Plugs are 8$ a piece and you are due for them, I would swap them. and test the coils while doing it. If that dosn't work, you are out nothing.
 

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Discussion Starter #10
The chances of injectors being bad at 70k is slim, and dealerships love money. Seems like injectors would be covered under the 10 year / 100k mi warranty anyway, but I'm sure they didn't mention that, because they want you to pay, then bill kia under warranty and 2x the money for nothing. Plugs are 8$ a piece and you are due for them, I would swap them. and test the coils while doing it. If that dosn't work, you are out nothing.
Thank you, rio-t. I don't have the 100k warranty because I bought used. If you buy used, you only get the warranty up to the 60k mark. ? But your info is very helpful and so thank you!

This info would have served much better purposes for good responses to you IF it had been included in your first posting. YES member rio-t may have "hit" the button on the problem. I could only SPECULATE from the lack of info offered initially.
Thank you, MIA KIA 09.

Just my 2 cents, from experience. I have put 150k mi on a 1.6 gamma cvvt in a 2013 Rio. I know the 1.6 gamma was n a lot of Souls but they had other options. You are due for the plugs anyway, and I could not stress more, I had the exact same problem at 120k which was 70k on the second set of plugs. I mean exact.
Thank you, very helpful, rio-t.
 

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pl
Thank you, rio-t. I don't have the 100k warranty because I bought used. If you buy used, you only get the warranty up to the 60k mark. ? But your info is very helpful and so thank you!
please report back and let us know, and be sure to test the coils (I have original coils at 150k so it should be fine but test)
 
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