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Home >> Buick >> 1995 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.2L >> ECM/Pcm Code Charts >> Code 44: Lean Exhaust Indication >> Diagnostic Aids
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Diagnostic Aids

Using scan tester, observe Block Learn Memory (BLM) value at different RPMs. If conditions for a lean exhaust code exist, block learn value will be about 150.

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