Brad's Car Manuals
: A 3rd party mirror of CHARM + LEMON car manuals
Home
>>
Ford
>>
1990
>>
Bronco II RWD, Standard, M5OD-R1
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Tests W/Codes
>>
Test H - Fuel Control
>>
Code 86
>>
Code 42
Code 42
Download the full database via torrent (~1.1 TB)
Intermittent HEGO signal (SIG or GND circuit).
Excessive fuel flow, pressure regulator vacuum supply disconnected or blocked fuel return line.
Excessive fuel flow, damaged or stuck open injector(s).