Engine cranks does not start, codes U1001 and P1700

Tiny
ANDRIN ATEM
  • MEMBER
  • 2006 NISSAN MURANO
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 198,761 MILES
I am confused on what to do after wasting my best knowledge on getting this car to at least start for just 2 minutes. Please help me on what bolts or ground I should further check. Thanks
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Wednesday, April 14th, 2021 AT 9:31 AM

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Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
We need to start with the basics and find out if we have spark and fuel to determine what direction to go. The reason is, neither of these codes by themselves is going to cause a no start.

So that mean we need to find out if we have fuel and spark and go from there.

https://youtu.be/dCjmRL3p4Cs

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, when you say you got it started is that recent or before these codes? Also, did you have these codes from the start of all this or did they just come up recently?

The only one I am concerned with right now is the U code as that is a communication code with the ECM. Here is a guide that talks more about this network as we may need to go down this road depending on what we find with fuel and spark:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Just start with using starter fluid in the intake and see if it fires. If it does then we have a fuel issue. If not, we need to check spark.

Let me know if you have questions. Thanks
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Wednesday, April 14th, 2021 AT 4:20 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 178 POSTS
Thanks very much. I realize all the six ignition coils had blown, so I replaced and the car started.
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Saturday, April 17th, 2021 AT 2:58 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Wow. That is rare. Thanks for the update and glad you got it going. That info will surely help others. Thanks
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Saturday, April 17th, 2021 AT 6:16 PM

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