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Home >> Pontiac >> 1990 >> Firebird Formula, 5.0 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - V8 PFI >> Code 44: Lean Exhaust Indication >> Notes

Code 44: Lean Exhaust Indication: Notes

  1. Code 44 is set when the oxygen sensor signal voltage on circuit No. 412 remains less than .2 volt for at least 50 seconds and the system is operating in closed loop.
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