K 1500 Suburban 4WD V8-6.5L DSL Turbo VIN F (1999)
14.5. Check for proper base installation of the injection pump (injection pump ESO solenoid should be approximately straight up and down).
14.6. If the TDC Offset is stuck on a high + (plus) value, check for a damaged camshaft driven gear key.
14.7. If the TDC Offset is stuck on a high - (negative) value, check for a damaged or improperly installed crankshaft position sensor.
14.8. If all checks have been performed, the injection pump may be malfunctioning, however, this is an extremely unlikely failure.