TorqueMech Beta
TorqueMech OBD Code Guide

P0102 - Mass or Volume Air Flow Circuit Low Input

MAF signal voltage/reading is too low.

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Code Meaning

MAF signal voltage/reading is too low.

Common Causes

MAF unplugged/failed
Wiring open/short to ground
Air leak
Low airflow due to restriction

Quick Checks

  • Check MAF connector seated
  • Inspect wiring for opens
  • Verify 5V reference and ground
  • Check intake for restrictions

Likely Repairs

Use test results to confirm the fault before pricing the repair.

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Related Codes

P0100
Mass or Volume Air Flow Circuit Malfunction
Open ->
P0101
Mass or Volume Air Flow Circuit Range/Performance
Open ->
P0103
Mass or Volume Air Flow Circuit High Input
Open ->

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.

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