Possible causes
– Plugged air intake or exhaust
– Plugged fuel filter
– Fuel pump failure
– Injector failure
– Plugged fuel filter
– Fuel pump failure
– Injector failure
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
ISUZU Technical Service Bulletins for P1171 code
1998 ISUZU RODEO ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
1998 ISUZU TROOPER ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
1999 ISUZU RODEO ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
1999 ISUZU TROOPER ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
2000 ISUZU RODEO ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
2000 ISUZU TROOPER ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
2000 ISUZU VEHICROSS ENGINE AND ENGINE COOLING:ENGINE:GASOLINE