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Code P0340

Tiny
PWELLS132
  • MEMBER
  • 2005 ACURA RSX
  • 4 CYL
  • 2WD
  • MANUAL
  • 173,000 MILES
Pulled my harness and inspected the wires and tested my cam sensor plug on the harness and my ground is 11.4 volts but my blue and white signal wire is not working. Checked both ends of the wire and no volts. Made a new wire to be certain of no shorting and still have no power to my signal. I also checked all fuses, and everything seems fine. Can someone please help?
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Sunday, December 12th, 2021 AT 4:08 PM

2 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Typically, the code P0340 leads to some sort of wiring issue. It could also be due to poor connection.

I have attached the trouble shooting steps for the P0340 below. Follow that guide it should help you pinpoint the issue.

Let me know of any questions.
Thank you.
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Sunday, December 12th, 2021 AT 6:32 PM
Tiny
PWELLS132
  • MEMBER
  • 2 POSTS
I followed that trouble shooting and I have power from pin 3 and pin 2/3 but pin one has no power. I made a new wire and left about an inch of wire off the connector on the ECU side because I didn’t have a new open connector and it’s still no signal. I reset my ktuner ECU and tried my stock ECU. Pulled my harness 2 times now and checked all wire very closely and still no power...
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Sunday, December 12th, 2021 AT 7:07 PM

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