Engine Error
P0256
Injection Pump Fuel Metering Control B
Severity
High
Symptoms
Rough idle, poor engine performance, stalling
Common Causes
- Failed injection pump B circuit
- Clogged fuel filter
- Air in fuel system
- Faulty metering valve B
How to Fix
- 1 Rebuild or replace injection pump
- 2 Replace fuel filter
- 3 Bleed fuel lines
- 4 Replace metering valve B
Estimated Repair Cost
USD
$50
–
$2000
Pump rebuild: 1,000 - 2,000