AutoCodes – Generic – P1433

P1433 Code - Fuel Level Sensor 2 Circuit High Voltage

Quick Answer

With the engine running, the Powertrain Control Module (PCM) detects that the Fuel Level sensor signal was more than 2.90v, condition met for over 2 minutes. Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P1433 indicates Fuel Level Sensor 2 Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 22,700

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1433 Description

With the engine running, the Powertrain Control Module (PCM) detects that the Fuel Level sensor signal was more than 2.90v, condition met for over 2 minutes.

OBDII Code P1433 - Fuel Level Sensor 2 Circuit High Voltage - AutoCodes.com — P1433 Code - Fuel Level Sensor 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1433?

Faulty Fuel Level Sensor
Fuel Level Sensor harness is open or shorted
Fuel Level Sensor circuit poor electrical connection

How to Fix the DTC P1433?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1433 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1433 code?

Need more information on how to fix the P1433 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P1433 Audi — Secondary Air Injection Pump Relay Circuit Open
P1433 Buick — Fuel Level Sensor 2 Circuit High Voltage
P1433 Cadillac — Fuel Level Sensor 2 Circuit High Voltage
P1433 Chevrolet — Fuel Level Sensor 2 Circuit High Voltage
P1433 Ford — A/C Refrigerant Temperature Circuit Low
P1433 GMC — Fuel Level Sensor 2 Circuit High Voltage
P1433 Volkswagen — Secondary Air Injection Pump Relay Circuit Open

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.