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Mike7979

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  1. Mike7979
    Thx I’ll give that a go today see what happens. I have replaced fuel pump assembly as well as fuel pressure sensor.
  2. Mike7979
  3. Mike7979
    Thanks in advance for any help. I have a 2007 gmc sierra 5.3l 4x4 sle. I'm getting no voltage at the fuel pressure sensor. Im getting code p069e from the ecm/ecu and codes p0641 and p06a6 from the fscm. I've tested the wires to fuel pressure sensor for conductivity all good there. Tested the reference circuits at the fscm and have no voltage on pins 6-7. Also tested those wires for conductivity, all good. I've cleaned all the grounds. Basically chasing my tail. Possibly ecm/ecu? Any ideas or suggestions more then welcome. Thanks for you're help/time
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