LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 1989 >> Reatta >> Repair and Diagnosis >> Engine Performance >> System >> 3.3L/3.8L Component Tests >> Diagnosis & Testing >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis & Testing: Notes

NOTE: The following conditions must be met before testing:
  • Engine at operating temperature.
  • Engine in closed loop operation.
  • Engine idling ("Engine Run" column).
  • Test terminal NOT grounded.
  • Scanner or ALDL tool NOT installed.