Code P1326

  • 2015 KIA OPTIMA
  • 2.4L
  • 4 CYL
  • 80,000 MILES
So we replaced the crankshaft sensor. The car remains to still not accelerate and won’t go over 20 mph.
Do you
have the same problem?
Tuesday, August 13th, 2019 AT 6:56 PM

1 Reply

Welcome to 2CarPros.

I have good and bad news. First, the code is related to a knock sensor and not the crankshaft position sensor. That's the bad. Next is the good news. I believe there to be a recall on this issue. If I recall, it dealt with a premature bearing wear issue and believe it or not, Kia is replacing engines. Now I can't guarantee your vehicle qualifies, but you need to contact a dealer. There were even issues regarding this code and engine compartment fires, so let them make the determination. However, I would not drive it until it can be inspected.

The recall was started in 2018. At that time, a diagnostic trouble code (P1326 Knock Plausibility) specific to the knock sensor is recorded by the vehicle's computer. The vehicle will still run in what is called Limp Home Mode, but will accelerate slowly and have a reduced maximum speed. Engine RPM will be limited to around 2000 RPM max.

Based on what I read, you need to have it checked by them.

Let me know if I can help in any way. Also, if you could, let me know what you find.

I was just ready to send this and found the original bulletin regarding this issue. It can cause a fire or it can cause premature engine wear. I had to break the page into two parts so you could read it. I did overlap it. See pictures 1 and 2.

I hope this helps you. Keep me in the loop.

Take care,
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Tuesday, August 13th, 2019 AT 10:05 PM

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