How long does a VW OBD-II drive cycle take?
How to Perform a Volkswagen Drive Cycle. The VW OBD-II drive cycle is an eight-step process. An explanation of each step is provided below. Total drive cycle time is 12 minutes. NOTE: Do not leave the key on prior to the cold start or the oxygen sensor (O2S) heater monitor may not run.
Do you have to follow the VW drive cycle?
By following the Volkswagen drive cycle below all emission monitors will run. The VW drive cycle must be followed accurately. Take extra caution when performing the drive cycle on public roadways. Perform the drive cycle at your own risk.
How to pass inspection and complete a drive cycle?
If you have a Code Scout 700 http://amzn.to/Nnwvot you can get a reading that tells you how many monitors are ready and how many are incomplete. All 8 monitors need to be in a “ready” status before you can pass inspection.
How long does it take to run O2 monitor in VW?
Open the throttle halfway until you reach 55 mph. During acceleration, the misfire, fuel system, and EVAP monitors run. Step 4: Steady State Cruise 3 Minutes — During this portion of the cycle, the O2S, AIR, EGR, EVAP, misfire, and fuel system monitors run. Step 5: Decelerate — Gradually coast down to 20 mph without applying the brakes.
What do you need to know about VW diagnostics?
You may choose to have a VW dealer or repair shop complete monitor testing while your VW is stationary via the use of a scan tool. An advanced scan tool will have the capability to command your VW’s engine control module (ECM) to run readiness code diagnostic tests in a special operational mode.
How many drive cycles does a VW catalytic converter need?
NOTE: If the CAT is marginal and the battery was disconnected prior to the drive cycle, it may take up to five separate drive cycles in order to determine the state of the catalytic converter.
Why is the rear O2 sensor behind the light-off catalyst lazy?
The O2 sensor behind the light-off catalyst (the Downstream Sensor) is also monitoring oxygen, but if the light-off (NOx) catalyst is storing oxygen properly (meaning the catalyst is healthy), the rear O2 sensor signal will be very lazy when compared to the upstream O2.