FixVault
Home
›
Ford
›
1990
›
Tempo Base
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/Codes - 2.3L
›
Test H - Fuel Control
›
All Other Engines
›
Circuits
All Other Engines: Circuits
HEGO SIG and GND circuits
HEGO harness insulation (near exhaust manifold)