P0313moderate severityPowertrain
Misfire Detected with Low Fuel
on 2002 Chevrolet Astro 4.3L V6 Vortec · RWD
What this code means
Misfires detected when fuel level is low.
Symptoms
- Check Engine Light
- Rough running on low fuel
- Stalling
Common causes
- Fuel pump losing prime at low fuel level
- Fuel pickup screen clogged
- Fuel tank contamination
Diagnostic steps
- Monitor misfire counts vs fuel level
- Inspect fuel tank
- Test fuel pressure at low fuel level
Repair notes
Fill fuel tank and test. Check fuel pump and pickup.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1