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DTC P0101: Mass Air Flow Circuit Range / Performance Problem: Description

Refer to DTC P0102. Refer to DESCRIPTION .

DTC No. DTC Detection Condition Trouble Area
P0101 Conditions (a), (b), (c), (d) and (e) continue for more than 10 seconds (2 trip detection logic):
(a) Engine is running.
(b) Engine coolant temperature is 70°C (158°F) or higher.
(c) Throttle position sensor voltage is 0.24 V or higher and 2 V or less.
(d) Average engine load ratio is less than 0.83, or more than 1.15 (varies with estimated engine load).
Average engine load ratio = Average engine load based on MAF meter output / Average engine load estimated from driving conditions
(e) Average air-fuel ratio is less than -20%, or more than 20%.
  • Mass air flow meter sub-assembly
  • Air induction system
  • PCV hose connections