For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• | Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• | Diagnostic Procedure Instructions provide an overview of each diagnostic category.

### DTC Descriptor

DTC P0313: Misfire Detected With Low Fuel Level

### Circuit/System Description

DTC P0313 indicates that an engine misfire has occurred during a low fuel condition.

### Conditions for Running the DTC

• | DTCs P0016, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0221, P0222, and P0223 are not set.

• | Engine speed is between 600-6,500 RPM.

• | The ignition 1 voltage is greater than 11 volts.

• | The engine coolant temperature (ECT) is between -7 and +120°C (+19 and +248°F).

• | The A/C compressor clutch is not changing states.

• | The torque management is not active.

• | The fuel tank level is more than 15 percent.

• | The ECM is not in fuel cut-off or decel fuel cut-off mode.

• | The ECM is not receiving a rough road signal.

• | The throttle angle is steady.

• | The transmission is not changing gears.

• | The antilock brake system (ABS) and the traction control system (TCS), if equipped, is not active.

• | The DTC runs continuously when the above conditions are met.

### Conditions for Setting the DTC

The ECM detects a crankshaft rotation speed variation indicating a misfire rate sufficient to cause emissions levels to exceed a predetermined value.

### Action Taken When the DTC Sets

DTC P0313 is a Type C DTC.

### Conditions for Clearing the DTC

DTC P0313 is a Type C DTC.

### Reference Information

#### DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

#### Scan Tool Reference

Control Module References for scan tool information

### Circuit/System Verification

1. DTC P0313 is an informational DTC only. Correct the engine misfire DTCs that are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle.
2. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.