So I’ve just rebuilt a ed30 that was in a front end crash I’ve mostly finished everything only problems occur now is the abs that keeps flashing up front left and driver side seat belt,the problem I have with it now tho that is the most confusing is when I press the clutch and brake pedal down the engine shuts off,but when I press one of them down like the brake pedal for instance the idle of the engine changes I’m just listing stuff but would this mean there’s air in the brakes and clutch or would that not matter to shut the engine off I’m so confused about it plz help