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Car died while driving, turns over but won't start

Tiny
SSTEPP1963
  • MEMBER
  • 2001 VOLKSWAGEN JETTA
  • 198,001 MILES
Died while driving, will not start. Pulling codes P0725, P1780, P1850.

Replaced spark plug wires, ignition coil. Checked for faulty connections and can't find any. This vehicle does not have relay 109.

Turns over fine but no start. Checked timing belt and it's on and turns fine.

Gas 2.0 engine.

I don't have any meters to check anything. Problem seems electrical.
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Sunday, May 5th, 2013 AT 9:19 AM

4 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The codes are transmission related and do not seem to be the cause of non starting. They are related to CAN-BUS communication problems and you might have a problem with the engine control unit.

What you need to do is to check the basics to see what is missing and proceed from there.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Go to above link for more information.
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Tuesday, December 20th, 2016 AT 11:07 AM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Could be crankshaft position (engine speed) sensor fault.

Here's a video on its location:

http://www.youtube.com/watch?v=ITHLsWa8v1w

Thomas
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Tuesday, December 20th, 2016 AT 11:07 AM
Tiny
SSTEPP1963
  • MEMBER
  • 2 POSTS
Thank you both! Especially for the links, they help alot.

Sandy
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Tuesday, December 20th, 2016 AT 11:07 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Let us know if you need further assistance.

I wonder why I am not being notified of replies.
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Tuesday, December 20th, 2016 AT 11:07 AM

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