AutoCodes – Generic – P1084

P1084 Code - Exhaust Valve Timing Control Position Sensor Bank 2 Circuit

Quick Answer

Exhaust valve timing control position sensor detects the concave groove of the exhaust camshaft rear end. Common causes include Faulty Exhaust Valve Timing Control Position Sensor Bank 2, Exhaust Valve Timing Control Position Sensor Bank 2 harness is open or shorted, Exhaust Valve Timing Control Position Sensor Bank 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1084 indicates Exhaust Valve Timing Control Position Sensor Bank 2 Circuit.
Common causes: Common causes include Faulty Exhaust Valve Timing Control Position Sensor Bank 2, Exhaust Valve Timing Control Position Sensor Bank 2 harness is open or shorted, Exhaust Valve Timing Control Position Sensor Bank 2 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 10,792

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 07, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1084 Description

Exhaust valve timing control position sensor detects the concave groove of the exhaust camshaft rear end.
This sensor signal is used for sensing a position of the exhaust camshaft.
This sensor uses a Hall IC.
Based on the position of the exhaust camshaft, ECM controls exhaust valve timing control magnet retarder to optimize the shut/open timing of exhaust valve for the driving condition.

OBDII Code P1084 - Exhaust Valve Timing Control Position Sensor Bank 2 Circuit - AutoCodes.com — P1084 Code - Exhaust Valve Timing Control Position Sensor Bank 2 Circuit

What does this mean?

What are the Possible Causes of the DTC P1084?

Faulty Exhaust Valve Timing Control Position Sensor Bank 2
Exhaust Valve Timing Control Position Sensor Bank 2 harness is open or shorted
Exhaust Valve Timing Control Position Sensor Bank 2 circuit poor electrical connection
Accumulation of debris to the signal pick-up portion of the camshaft
Crankshaft position sensor

How to Fix the DTC P1084?

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 P1084 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.

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Information for Specific Makes

P1084 Audi — Exhaust Bank 3- Mixture Adaption Range 2 Lower Rich Limit Not Reached
P1084 BMW — Fuel Control Mixture Rich Bank 1 Sensor 1
P1084 Infiniti — Exhaust Valve Timing Control Position Sensor Bank 2 Circuit
P1084 Lexus — HC Absorber Switching Valve Bank 2 Stuck Closed
P1084 MINI — Fuel Control Mixture Rich Bank 1 Sensor 1
P1084 Nissan — Exhaust Valve Timing Control Position Sensor Bank 2 Circuit
P1084 Volkswagen — Exhaust Bank 3- Mixture Adaption Range 2 Lower Rich Limit Not Reached

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.