LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 1998 >> Forward Control P12 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Computer Relearn Procedures) >> Computer Relearn Procedures >> "P" Body >> TDC Offset Learn Procedure (6.5L Diesel)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

TDC Offset Learn Procedure (6.5L Diesel)

WARNING: This page is about a different variant/trim than selected.

PCM will automatically activate TDC offset program when engine coolant is greater than 170°F (77°C) and engine speed is 900 RPM or less. A momentary engine stumble will occur once engine has reached desired temperature and RPM. This is an indication that PCM auto learn function has been activated. If offset is programmed out of range, DTC P1214 will set.