Possible causes
– Sticking fuel rail pressure regulator
– Faulty fuel rail pressure sensor
– Blocked fuel line pickup
– Faulty fuel rail pressure sensor
– Blocked fuel line pickup
When is the code detected?
Engine Control Module (ECM) detects fuel rail pressure went high then decreased sharply
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0087 ISUZU Description
Fuel Rail Pressure (FRP) Too Low
ISUZU Technical Service Bulletins for P0087 code
2004 ISUZU HTR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2004 ISUZU HVR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2004 ISUZU HXR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU HTR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU HVR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU HXR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU NPR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU NPR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU NQR ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2005 ISUZU NRR ENGINE AND ENGINE COOLING:ENGINE:DIESEL