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Hesitation, will start then spit, sputter and shut off

Tiny
JUSTIN GILMORE
  • MEMBER
  • 2003 KIA SORENTO
  • 3.5L
  • 6 CYL
  • 4WD
  • 200,000 MILES
My car started spitting sputter then shuts off wait 15 minutes and usually starts up and can drive anywhere from 15 to 5 miles them does it again. No fuses blown. Engine light is on but has been on since I have had it says fuel temperature sensor bad. New fuel pump, stumped.
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Wednesday, May 5th, 2021 AT 7:08 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
Hi,

By any chance, do you know the exact code that was found? Have any new ones shown up? If you haven't for some time, I would recommend having the computer scanned to confirm there is nothing different.

Keep in mind, this could be related to a few issues. My first suspect was the crankshaft position sensor. Then I saw the fuel temp sensor. This is used by the PCM to control the evaporative emissions system, so it could be causing the problem as well.

If you remember the code or can have it done again, let me know what is found. Also, take a look through this link and let me know if it seems to mirror what you are experiencing:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know. Also, when it happens, let me know if there are any odd smells, smoke from the exhaust, or anything you can think of that seem out of place.

Take care,

Joe
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Thursday, May 6th, 2021 AT 8:51 PM
Tiny
JUSTIN GILMORE
  • MEMBER
  • 3 POSTS
P028 I believe I'll check tomorrow and it stalls and shuts off randomly happening more than usual. Do you think it may be fuel air vent?
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Friday, May 7th, 2021 AT 1:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
The sensor could be related. The code will be a P and then a four-digit number. For example, it could be a P0128. There is nothing listed for a P0028, so let me know what you find.

Take care,

Joe
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Friday, May 7th, 2021 AT 6:33 PM
Tiny
JUSTIN GILMORE
  • MEMBER
  • 3 POSTS
The codes are p0335 p0340. Still doing the same thing. Cleaned MAF sensor and I guess next is camshaft sensors. I guess it acts like it's starving for fuel or not enough pressure in the fuel lines.
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Friday, May 7th, 2021 AT 9:40 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
Hi,

One code for the crankshaft position sensor and one for an oxygen sensor. If I had to guess which I would address first, I would say the crankshaft position sensor (CKP).

Do me a favor. Take a look through this link and let me know if you recognize any of the conditions mentioned.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

I don't know if you have access to a live data scanner, but if you do, check the short-term fuel trims and let me know what is found.

Also, below, I attached the diagnostics for the CKP code (P0335). Let me know if you are comfortable performing them.

Take care,

Joe

See pics below.

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Friday, May 7th, 2021 AT 10:19 PM

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