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Home >> GMC >> 1998 >> Forward Control 6.5 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Computer Relearn Procedures) >> Computer Relearn Procedures >> "Y" Body >> Attempt to start engine.
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Attempt to start engine.

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  1. If engine starts, go to next step. If engine does not start, check for any other DTCs. If any DTCs exist, perform test procedures for specified DTC and repair as necessary. See the appropriate TESTS W/CODES article in ENGINE PERFORMANCE.
  2. Clear DTCs from PCM. Turn ignition switch to OFF position for 30 seconds. Attempt to start engine.
  3. If engine does not start, ensure procedure was properly followed. If procedure was properly followed, check for any DTCs. If any DTCs exist, perform test procedures for specified DTC and repair as necessary. See the appropriate TESTS W/CODES article in ENGINE PERFORMANCE.
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