Engine-Codes - Volkswagen - P1093 Volkswagen

P1093 Volkswagen Code - Fuel Trim 2 Bank 1 Malfunction

- Code Popularity: 21,963 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P1093 Volkswagen?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Engine mechanical condition
  • Fuel system malfunction
  • Ignition system malfunction
  • Faulty oxygen sensor

Code Tech Notes

There is a service bulletin for the following Volkswagen vehicles:
2006-2007 Volkswagen Eos
2006-2007 Volkswagen GTI
2006-2007 Volkswagen Jetta
2006-2007 Volkswagen Passat
2006-2007 Volkswagen Passat Wagon
Volkswagen Factory Service Bulletin OBDII Code P1093

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How to Fix the DTC P1093 Volkswagen?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1093 Volkswagen code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1093 Volkswagen Code Mean?

On modern engines, the Fuel Trim is the adjustment performed by the Engine Control Module (ECM) to the fuel system to maintain a balanced and efficient air and fuel mixture ratio. Using the Mass Air Flow (MAF) and Oxygen Sensors (O2) measurements, the ECM calculates the correct amount of fuel to enter the combustion chamber by controlling the injector pulse.
More fuel can increase engine power, but will also increase fuel consumption and emissions; this is called a Rich Mixture. A Lean Mixture will reduce the engine power, fuel consumption and could increase emissions.
When the ECM fails to compensate the fuel due to above or below limits of air or fuel entering the engine (e.g., leaking intake hose, clogged air filter, leaking fuel injector, faulty fuel pump), the ECM will set a Rich or Lean Trim code.
P1093 Volkswagen Code - Fuel Trim 2 Bank 1 Malfunction

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