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Home >> Chevrolet >> 1990 >> Caprice Brougham, 5.0 E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L TBI >> Pcm/BCM Code Charts >> Code 44, Lean Exhaust Indication >> Notes

Code 44, Lean Exhaust Indication: Notes

CODE 44 ECM TERMINAL & CIRCUIT WIRING IDENTIFICATION

Application ECM Terminal Wire Color
O2 Signal D7 Purple
O2 Ground D6 Tan

O2 sensor acts like an open sensor circuit and produces no voltage when exhaust temperature is less than 600°F (316°C). An open sensor circuit or cold sensor causes "open loop" operation.

NOTE: Test number refers to number on diagnostic chart.
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