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Home >> Pontiac >> 1989 >> Firebird Formula, 5.7 8 >> Repair and Diagnosis >> Engine Performance >> System >> 5.0L/5.7L PFI Tests W/Codes >> Diagnosis & Testing >> Code 44: Lean Exhaust Indication >> Notes

Code 44: Lean Exhaust Indication: Notes

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Code 44 is set when the oxygen sensor signal voltage on circuit No. 412 remains less than .2 volt for at least 60 seconds and the system is operating in "closed loop".
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