Service and Repair Manual June 2021
Ford MSG-425 Engine Fault Codes
152 GS
â„¢
-84 • GS
â„¢
-90 Part No. 1306587GT
at start
IAT higher than expected 1
ECT higher than expected 1
age
1 lower than TPS2
1 low voltage
1 high voltage
IAT higher than expected 2
-cat 1
-cat 1
-cat 2/post-cat 1
ost-cat 2
FT Gaseaous fuel low voltage
FT Gaseaous fuel high voltage
ECT higher than expected 2
Max govern speed override
1 higher than TPS2
2 low voltage
2 high voltage
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
0
Injector Loop Open or Low
- side short to
Injector Loop Open or Low
-side short to
Injector Loop Open or Low
-side short to
oil Shorted
For further engine fault code troubleshooting and
diagnostic information, refer to the Ford MSG-425
EFI Diagnostic Manual (EDI part number
1080030).
-425 EFI Diagnostic Manual