P0462
Fuel Level Sensor Circuit Low Input
2003-2003 Mazda MX-5 Miata 1.8L I4
Low SeverityPowertrainGeneric (SAE)
The 2003 Mazda MX-5 Miata is equipped with a 1.8L inline-4 engine. Below you'll find detailed p0462 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Low voltage from fuel level sensor (stuck on full or empty depending on design).
Symptoms
- Gauge reads empty constantly
- Low fuel warning always on
Common Causes
- Short to ground
- Faulty sensor
- Corroded wiring
Diagnostic Steps
- Test circuit voltage
- Check for shorts
- Test sensor resistance
Repair Notes
Repair or replace sender.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0462 on Other Vehicles
Common Questions
What does code P0462 mean on a 2003-2003 Mazda MX-5 Miata?
P0462 stands for "Fuel Level Sensor Circuit Low Input". Low voltage from fuel level sensor (stuck on full or empty depending on design).
What are the symptoms of P0462 on a Mazda MX-5 Miata?
Common symptoms of P0462 include: Gauge reads empty constantly, Low fuel warning always on.
What causes P0462 on a 2003-2003 Mazda MX-5 Miata?
Common causes of P0462 include: Short to ground, Faulty sensor, Corroded wiring.
Last updated: March 2026