1986.5 ECU Failure - ECU Replacement Fix

Electricalbeginner✓ OP Confirmed

Problem

1986.5 Supra experiencing issues suspected to be caused by a failing ECU. Original problem description was deleted, but the thread title indicates the owner suspected ECU failure and was seeking a replacement unit for testing.

Unknown engine/electrical issues suspected to be ECU-related

Root Cause

Failed or malfunctioning factory ECU

Confidence

Low confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted July 2022 on SupraForums.com