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

• | Scan Tool Data List

• | Scan Tool Data Definitions

• | Scan Tool Output Controls

### 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. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.