Toyota Corolla (E120): Evap monitor (vacuum pressure monitor)

Notice

: a cold soak must be performed prior to conducting the drive pattern to complete the internal pressure readiness monitor.

  1. Cold soak preconditions

The monitor will not run unless:

  • mil is off.
  • Fuel level is approximately 1/2 to 3/4.
  • Altitude is 7800 feet (2400 m) or less.
  1.  cold soak procedure

Let the vehicle cold soak for 8 hours or until the difference between iat and ect becomes less than 13°f (7 °C).

Hint

: examples:

  • scenario 1
    ect = 75°f (24 °C)
    iat = 60°f (16 °C)
    difference between ect and iat is 15°f (8 °C).

    The monitor will not run because difference between ect and iat is greater than 13°f (7 °C).

  • Scenario 2
    ect = 70°f (21 °C)
    iat = 68°f (20 °C)
    difference between ect and iat is 2°f (1 °C).

    The monitor will run because difference between ect and iat is less than 13°f (7 °C).

    Share this page:

    Other materials:

    Disposal
    1. Dispose shock absorber assy front lh  fully extend the shock absorber piston rod.  using a drill, make a hole in the cylinder as shown in the illustration to discharge the gas inside. Caution: when drilling, chips may fly out, work carefully. The gas is colorless, o ...

    Circuit description
    Hint: these dtcs indicate a malfunction related to the primary circuit. If dtc p0351 is displayed, check the no.1 Ignition coil with igniter circuit. If dtc p0352 is displayed, check the no.2 Ignition coil with igniter circuit. If dtc p0353 is displayed, check the no.3 Ignition coil ...

    Standard bolt
    How to determine bolt strength Specified torque for standard bolts How to determine nut strength *: Nut with 1 or more marks on one side surface of the nut. Hint: use the nut with the same number of the nut strength classification or the greater than the bolt strength classificati ...