AutoCodes – Ford – P2091 Ford

P2091 Ford Code - 'B' Camshaft Position Actuator Control Circuit High Bank 1

Quick Answer

The Variable Camshaft Timing (VCT) solenoid valve is an integral part of the VCT system. Common causes include Low or Dirty Engine Oil, Incorrect camshaft timing, Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 2 (VCT12). 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: P2091 Ford indicates 'B' Camshaft Position Actuator Control Circuit High Bank 1.
Common causes: Common causes include Low or Dirty Engine Oil, Incorrect camshaft timing, Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 2 (VCT12).
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 2,480

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 28, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P2091 Ford Description

The Variable Camshaft Timing (VCT) solenoid valve is an integral part of the VCT system. The solenoid valve controls the flow of engine oil in the VCT actuator assembly. As the Powertrain Control Module (PCM) controls the duty cycle of the solenoid valve, oil pressure/flow advances or retards the cam timing. Duty cycles near 0% or 100% represent the rapid movement of the camshaft. Retaining a fixed camshaft position is accomplished by dithering (oscillating) the solenoid valve duty cycle.
The PCM calculates and determines the desired camshaft position. It continually updates the VCT solenoid duty cycle until the desired position is achieved. A difference between the desired and actual camshaft position represents a position error in the PCM VCT control loop. The PCM disables the VCT and places the camshaft in a default position if a concern is detected. A related Diagnostic Trouble Code (DTC) also sets when the concern is detected.
When the VCT solenoid is energized, engine oil is allowed to flow to the VCT actuator assembly which advances or retards the camshaft timing. One half of the VCT actuator is coupled to the camshaft and the other half is connected to the timing chain. Oil chambers between the 2 halves couple the camshaft to the timing chain. When the flow of oil is shifted from one side of the chamber to the other, the differential change in oil pressure forces the camshaft to rotate in either an advance or retard position depending on the oil flow.
This DTC sets when a high voltage on the Variable Camshaft Timing (VCT) Bank 1 Solenoid 2 (VCT12) circuit exceeds a calibrated limit for a calibrated amount of time.

OBDII Code P2091 Ford - 'B' Camshaft Position Actuator Control Circuit High Bank 1 - AutoCodes.com — P2091 Ford Code - 'B' Camshaft Position Actuator Control Circuit High Bank 1

What does this mean?

What are the Possible Causes of the DTC P2091 Ford?

Low or Dirty Engine Oil
Incorrect camshaft timing
Faulty Variable Camshaft Timing (VCT) Bank 1 Solenoid 2 (VCT12)
Variable Camshaft Timing Bank 1 Solenoid 2 circuit is open or shorted
Variable Camshaft Timing Bank 1 Solenoid 2 circuit poor electrical connection

How to Fix the DTC P2091 Ford?

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 P2091 Ford 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 Ford Models

P2091 2015 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1
P2091 2016 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1
P2091 2017 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1
P2091 2018 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1
P2091 2019 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1
P2091 2020 Ford F150 — 'B' Camshaft Position Actuator Control Circuit High Bank 1

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.