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Home >> Buick >> 1994 >> Roadmaster Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.7L >> ECM/Pcm Code Charts >> Code 44, Left Heated Oxygen Sensor Circuit Lean Indication >> Misfire Or Stall

Misfire Or Stall

If engine misfires or stalls (including running out of fuel) while vehicle is moving, a Code 44 may set. If Code 44 is intermittent, see INTERMITTENTS in TESTS W/O CODES article in this section.

CODE 44 PCM TERMINAL & CIRCUIT WIRING IDENTIFICATION

Application PCM Terminal Wire Color
Left O2 Signal C20 Purple/White
Left O2 Ground C19 Tan/White
Fig 1: Code 44 Schematic (5.7L) Lean Exhaust Indication
G91H07378
Fig 2: Code 44 Flow Chart (5.7L) Lean Exhaust Indication
G91I07350
Fig 3: Code 44 Flow Chart
GB0013272
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