From Ross-Tech Wiki

17552/P1144 - Mass Air Flow Sensor (G70): Open or Short to Ground

Possible Symptoms

  • MIL on
  • Excessive smoke from Exhaust
  • Reduced Engine Output

Possible Causes

  • Fuse or Wiring Harness Issue
  • Failed Mass Air Flow Sensor (G70)

Possible Solutions

  • Check Fuses and Wiring Harness, see Factory Repair Manual
  • Replace Mass Air Flow Sensor (G70)
  • Check Measuring Value Blocks
  • Check EGR with TDI engines