AutoCodes - Generic - P033B

P033B Code - Knock Sensor 4 Circuit Range/Performance Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P033B code possible causes

  • Faulty Knock Sensor 4 Bank 2
  • Knock Sensor 4 Bank 2 circuit poor electrical connection
  • Knock Sensor 4 Bank 2 harness is open or shorted
  • Faulty Engine Control Module (ECM)

|How do I fix the P033B code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the P033B code

Labor: 1.0

The cost of diagnosing the P033B code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P033B code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|P033B code description

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.
OBDII Code P033b - Knock Sensor 4 Circuit Range/Performance Bank 2 -

|Need more information with the P033B code?

Need more information on how to fix the P033B code? Get Access to Factory Service Manuals

|P033B code information for specific makes

  • P033B TOYOTA Knock Sensor 4 Circuit Range/Performance Bank 2

|Need help with a P033B code?

Get the P033b code diagnosed by a professional: Find a repair shop in your area

|P033B code comments

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