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Home >> Buick >> 1993 >> LeSabre Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.8L >> ECM/Pcm Code Charts >> Code 48 - Misfire Diagnosis >> Ignition System Checks

Ignition System Checks

Remove and inspect each spark plug. If plugs are fouled, check ignition wires, ignition coil and ignition module operation. If plugs are cracked or worn, replace plugs. If no fault is found, perform BASIC ENGINE CHECKS.