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Thread: Control Module Voltage?

  1. #1
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    Control Module Voltage?

    Does anyone no where this value comes from, I'm chasing down a no start problem and mine reads 11.8v. I also noticed Fuel System Status = "OL-Not Ready"?

    Car cranks, has 50+PSI at the rail and spark. Pretty much on a stock tune, no DTC's either.

  2. #2
    Tuning Addict 5FDP's Avatar
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    Does it match or is super close to your battery voltage?


    OL not ready is correct for a vehicle starting cold.


    Post the tune. Maybe disable the VATS system if you haven't, it might be causing it to not start.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
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    Quote Originally Posted by 5FDP View Post
    Does it match or is super close to your battery voltage?


    OL not ready is correct for a vehicle starting cold.


    Post the tune. Maybe disable the VATS system if you haven't, it might be causing it to not start.
    11.8 vs 12.2
    Vats is already disabled

  4. #4
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    That shouldnt cause any issues, I've never had issues starting my vehicle under 11.5v other than the lethargic spin of the starter.

    Can you confirm you have injector pulse?

  5. #5
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    Quote Originally Posted by HackAbuse View Post
    That shouldnt cause any issues, I've never had issues starting my vehicle under 11.5v other than the lethargic spin of the starter.

    Can you confirm you have injector pulse?
    Checked has pulse via, noid

  6. #6
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    Does it every sputter like it wants to start or does it just crank for days

  7. #7
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    Quote Originally Posted by HackAbuse View Post
    Does it every sputter like it wants to start or does it just crank for days
    Cranks hard but no sputter.

  8. #8
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    What's done to the vehicle? Are you sure it's getting enough fuel during crank? Any DTCs after cranking?