$projecthp
  • no fuel milage/range info in the DIC
  • no fuel milage/range info in the DIC
  • no fuel milage/range info in the DIC
  • no fuel milage/range info in the DIC

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  1. #1
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    Missouri
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    Default no fuel milage/range info in the DIC

    I recently bought a 1990 Corvette ZR1 and drove it from CA to MO with no issues. During that trip the fuel mileage information and range worked fine in the DIC. I recently had to replace the brake light switch, and had the battery disconnected several times in the process. When I finished that project, the brake lights all work (including the High Mounted one) but the DIC function for only the fuel mileage: instant and average, and range shows either 0 or nothing at all. The car only has about 33K on it. VIN 800254

    Any ideas?

  2. #2
    Site Administrator Rob's Avatar
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    1990 ZR-1 - Bright Red / Black
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    Congrats on getting your ZR-1.

    If you detach the battery cables long enough, fuel consumption data will be erased out of the ECM.


    Rob Loszewski, Owner & Site Administrator
    Corvette Action Center
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    NCRS Member #27792
    "Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt." - Sun Tzu
    1990 Chevrolet Corvette ZR-1 , 350 Stock ZF 6-speed. Stock Bright Red

  3. #3
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    Rob,

    So yesterday, I took it for a little exercise, and did about 100 spirited miles......still did not generate any instant, average mpg or range.... You are right, I did have the battery disconnected for several hours, and had to reset the clock. Could I have somehow queried codes?

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