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Supermofool

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  1. Supermofool
    Bringing this thread back: My truck is a 2015 sierra with an early build date in Aug 2014. The truck has a factory flex fuel sensor and i just took it to someone with HP tuners to see if the sensor was active. "Flex fuel" was Enabled but the sensor was set to virtual. what would everyone recommend? I think i am going to buy HP tuners and check the stoich table to see if it is 14.7 across the board or if it has a FF tune in it
  2. Supermofool
    Aug 27th 2014 was build date i just found out. I’m somewhat leaning towards it might be factory flex fuel. But the FH0 RPO code throws me off.
  3. Supermofool
    I’ll try this. Thanks!
  4. Supermofool
    My 2015 GMC Sierra has the RPO Code of FH0 that states it’s non flex fuel. I looked under it today and it has the flex fuel sensor already plumbed in and connected. Seems odd to me. I did all the research on here to get all the parts i needed but i guess i won’t be needing to do any of that. Maybe buy an HP tuner and check if the sensor is active. I was wondering if anyone has come across this on their truck?
  5. Supermofool
    Bringing up an old thread, but I’m looking for these hoses as well. Going to search parts diagrams for them. Lmk if anyone has found them.

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