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ISB/ISBe Series Engines – FAULT CODE 2216

Fuel Rail Pressure Negative Deviation Error


Overview

CODE REASON EFFECT
Fault Code: 2216
PID: P094
SPN: 94
FMI: 1/18
LAMP: Yellow
SRT: 

Fuel rail pressure signal indicates that fuel pressure is consistently higher than the commanded fuel pressure.

Possible power derate or no effect.
Fuel Rail Pressure Circuit
SMALL | MEDIUM | LARGE

Circuit Description

This fault indicates that more fuel is commanded to maintain the fuel pressure in the fuel rail. The electronic fuel control actuator controls how much fuel is delivered to the high-pressure pump. The electronic control module (ECM) supplies an electronic current to the fuel control actuator. The electronic fuel control actuator is normally open and is only closed when current is supplied. The high-pressure fuel is accumulated in the fuel rail. The fuel rail pressure sensor measures the fuel pressure and sends a signal to the ECM.

Component Location

The fuel system is located on the intake side of the engine.

Shop Talk

Inspect the electronic fuel control actuator and rail pressure sensor for tampering. High resistance in the rail pressure sensor circuit can cause the fault.

Refer to Troubleshooting Fault Code t05-2216

Last Modified:  26-Oct-2010
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