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Engine got wet, now it will not stay running and codes P0171 and P1685

Tiny
SNIDER327
  • MEMBER
  • 2001 DODGE DAKOTA
  • 5.9L
  • V8
  • 2WD
  • AUTOMATIC
  • 84,587 MILES
It will start up but shuts off, the motor got wet in the rain it is showing two codes p0171 and p1685. Any help would be greatly appreciated.
Saturday, July 9th, 2022 AT 8:36 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,690 POSTS
The p0171 code is for mixture and won't keep the car from starting. the P1685 code is the one that says the car doesn't recognize the key, do you have a spare key by chance? I would try that, or let's try to hard reboot the system, remove the negative battery cable and hold it against the positive battery terminal for 1 minute, this will discharge all capacitors helping the system clear itself out and restart. Also, when you try to start it does the security light flash? If so, this guide can help fix it:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Sunday, July 10th, 2022 AT 11:21 AM
Tiny
SNIDER327
  • MEMBER
  • 3 POSTS
Thank you for the answer to my question. It was the spare key that I was using. Your information was invaluable to me.
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Wednesday, July 13th, 2022 AT 8:40 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,690 POSTS
Do you have the original key and have you tried it?
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Wednesday, July 13th, 2022 AT 12:15 PM
Tiny
SNIDER327
  • MEMBER
  • 3 POSTS
Yes, that what it was. Thanks for the answer.
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Thursday, July 14th, 2022 AT 9:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,690 POSTS
Good to hear, please use 2CarPros anytime we are here to help.
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Thursday, July 14th, 2022 AT 10:37 AM

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