Back to 1999 BMW 540iT E39

1999 BMW 540IT E39

4.4L V8RWDAUTOMATICgas
Repairs0Labor595Torque2626Fluid7DTC649Battery0Maintenance0Recalls0
P0453low severityPowertrain

EVAP Pressure Sensor/Switch High Input

on 1999 BMW 540iT E39 4.4L V8 · RWD

What this code means

High voltage from the fuel tank pressure sensor.

Symptoms

  • Check Engine Light

Common causes

  • Open circuit
  • Short to power
  • Faulty sensor

Diagnostic steps

  1. Test sensor voltage
  2. Check for opens
  3. Inspect wiring

Repair notes

Replace fuel tank pressure sensor.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →