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cel 21

  1. i need vtec solenoid help

    Engine Management
    okay so im throwing cel 21 for vtec spool valve, i searched related problems and they all said to check the wiring so i did and all is fine so i figure my solenoid is bad but i have a back up one but when i picked it up i decided to shake it and it makes a noise when i do, does this mean...
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