Engine-Codes - Subaru - P1093 SUBARU

P1093 SUBARU - Tumble Generated Valve System 2 Valve Close

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1093 SUBARU Possible Causes

  • Faulty Tumble Generator
  • Tumble Generator harness is open or shorted
  • Tumble Generator circuit poor electrical connection

How is the P1093 SUBARU code repair?

Start by checking 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.

What is the cost to diagnose the P1093 SUBARU code

Labor: 1.0

The cost to diagnose the P1093 SUBARU 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.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

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

P1093 SUBARU Meaning

The tumble generator system uses an electronically controlled butterfly valve in each intake runner port.
At cold idle, the tumble generator system will redirect the air charge through a different port. These ports have a finish characteristic that causes the air/fuel mixture to swirl and tumble greatly and create better combustion. This results in greater idle quality, cleaner emissions, and easier cold-starts.
Once the vehicle warms up, the tumble generator system will be deactivated and the intake air charge will be directed through the standard intake ports.
The Diagnostic Trouble Code (DTC) will set when the tumble generator valve is detected closed when the desired position is open.

More Information

Need more information on how to fix the P1093 SUBARU code?
Get Access to Factory Service Manuals

Need more help?

Get the P1093 Subaru code diagnosed by a professional: Find a repair shop in your area