How do you complete a Chevy drive cycle?

How do you complete a Chevy drive cycle?

To perform an OBDII Driving cycle do the following:

  1. Cold Start. In order to be classified as a cold start the engine coolant temperature must be below 50°C (122°F) and within 6°C (11°F) of the ambient air temperature at startup.
  2. Idle.
  3. Accelerate.
  4. Hold Steady Speed.
  5. Decelerate.
  6. Accelerate.
  7. Hold Steady Speed.
  8. Decelerate.

How long do you have to drive to complete a drive cycle?

Preparation for it will take eight hours but, all in all, a basic drive cycle test should take around 30 minutes to complete, with about 20 minutes of actual driving. Understanding your vehicle’s overall health can help you ensure it drives smooth and lasts long.

How do you do a drive cycle for inspection?

15 minutes of steady driving on an expressway/highway followed by 20 minutes of stop-and-go driving with at least four 30-second idle periods. Allow the vehicle to sit for at least eight hours without starting the engine. Then, start the engine and complete the above driving cycle.

Is clearing codes bad while driving?

If your main reason for buying an inexpensive scanner is to reset the check-engine light, know this: clearing the code and turning the light off doesn’t mean your issue has gone away. It’s possible that the warning light won’t come back on after you clear the code.

How long do I leave battery unhooked to reset computer?

Because some of the electrical current is preserved in the computer for a while afterward, most sources recommend leaving the battery disconnected for at least 15 minutes to make sure the computer forgets the code before you reconnect the battery.

When does a vehicle perform a drive cycle?

The vehicle performs the self-diagnostic computer test when the vehicle is driven. This is commonly referred to as a “drive cycle.” If possible, when working on a vehicle either before or after an E-Check OBD II test; do notclear the Diagnostic Trouble Codes (DTC’s) so that the check engine light remains on after the repair(s).

What’s the drive cycle for a GM OBDII?

Performing a GM OBDII Driving cycle: Cold Start. Idle. Accelerate. Hold Steady Speed. Decelerate. Accelerate. Hold Steady Speed. Decelerate.

Can you jump start a car for the drive cycle?

Jump-starting a vehicle can be a death sentence for the PCM. It can also negatively impact the drive cycle test. Let the vehicle sit for more than 8 hours. The first step of the drive cycle is a cold start. In order for the test to begin, the engine temperature needs to match the outside ambient temperature.

How long does it take for an OBD drive cycle to start?

(Note: Drive cycle specifics vary by vehicle!) Ensure that the fuel tank is between 1/4 and 3/4 full. Start cold (below 86°F /30°C) and warm up until engine coolant temperature is at least 160° F (typically requires at least one minute; up to 3 minutes).

Performing a GM OBDII Driving cycle: Cold Start. Idle. Accelerate. Hold Steady Speed. Decelerate. Accelerate. Hold Steady Speed. Decelerate.

How to perform a basic drive

While it is idling, turn on the head lights, heater/defroster, and rear defroster for a three to five minute warm-up phase. Let the idle speed settle down to near the normal speed. Next, put the vehicle in gear and drive through city streets at about 25 mph.

When do you start the drive cycle on your car?

Accelerate at part-throttle to 38-65 mph and maintain that speed for 2 minutes. Note that this step must occur within 4-10 minutes from a cold engine startup (if the drive cycle does not begin within 10 minutes of a cold engine startup, turn the key off to reset the timer and then restart the engine).

What’s the driving cycle for a General Motors car?

Hold a steady speed of 88km/hr (55mph) for 3 minutes. During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed. Decelerate. Let off the accelerator pedal. Do not shift, touch the brake or clutch. It is important to let the vehicle coast along gradually slowing down to 32km/hr (20 mph).