Stop vehicle and repeat without overdrive to 64 Km/h (40 MPH) cruising for at least 30 seconds. While at 64 Km/h (40 MPH) , activate overdrive and accelerate to 80 Km/h (50 MPH) and cruise for at least 15 seconds. Stop for at least 20 seconds and repeat step 10 five times.
What is a vehicle drive cycle?
a drive cycle is one of the methods used by a vehicle’s powertrain control module (pcm) to determine whether an emissions system repair was performed successfully. it involves a special test drive that duplicates the scenario of a person starting the car and making a short freeway trip, as if driving to work.
How many miles do you need to pass emissions?
You will be required to drive between 100-200 miles and over the course of a week, called a Drive Cycle, in order to “complete” the emission monitors and be allowed to pass the smog check.
How do you do a Drive Cycle for inspection?
General Motors Drive Cycle For Smog Check Start the vehicle from a cold start. Let the engine run on idle. Accelerate to 55 mph. Hold a steady speed of 55 mph for 3 minutes. Let go of the accelerator and coast until the vehicle hits 20mph. Accelerate again until 60 mph. Hold steady for 5 minutes at 60mph for 5 minutes.
What causes an oxygen sensor to fail?
O2 sensor failures can be caused by various contaminants that enter the exhaust. These include silicates from internal engine coolant leaks (due to a leaky head gasket or a crack in a cylinder wall or combustion chamber) and phosphorus from excessive oil consumption (due to worn rings or valve guides).
Will a permanent code clear itself?
Permanent Diagnostic Trouble Codes (PDTCs) are very similar to regular Diagnostic Trouble Codes (DTCs). However, unlike regular DTCs, they cannot be reset by disconnecting the vehicle’s battery or cleared using an On-Board Diagnostic (OBD) scan tool.
How do you clear a Ford permanent code?
A Permanent DTC is erased in one of two ways: After three consecutive confirmed fault-free permanent DTC driving cycles. After one confirmed fault-free permanent DTC driving cycle following a scan tool “clear DTC” request.
How long does it take for oxygen sensor to reset?
Turn the ignition to the on position but do not turn on the engine (it will not start anyway). After five minutes, reinsert the fuse. The lamp of the check engine will blink and then turn off, indicating that your ECU has been restored.
How do you complete a Ford drive cycle?
Idle the vehicle in Drive for 1 minute. Drive at 25 mph and drive for 15 minutes at speeds between 15-35 mph. Within this time, stop at least 5 times, and have at least 3 periods of steady speed for 90 second durations. Drive the vehicle between 45-60mph for 8 minutes.
How do I pass OBD II emissions?
Tips & Tricks for Passing an Emissions Test Warm up your engine. Make sure your car is up-to-date on routine service. Fix any known engine-related problems. Make sure the “Check Engine” light is off. Bring your vehicle to a smog test location that retests for free. Make sure the “Check Engine” light is off.
How do I reset my drive cycle?
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.
How do I get rid of code P1000?
In order to clear a P1000 trouble code the vehicle must be driven through a Drive Cycle until all monitors are completed or in ready status.
Why is my check engine light still on after changing O2 sensor?
The check engine light could be caused by more than one problem. Your oxygen sensor may have been replaced by the technician, but your spark plugs need to be replaced as well.
How long does it take 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.
How do I reset my EGR?
Start the engine and idle the engine in drive for two and half minutes, with the A/C on high and rear defroster on if equipped. 4. Turn the A/C and rear defroster off, and speed up to 90 km/h (55 mph) under moderate, constant acceleration. Hold at a steady speed for three minutes.
How long does it take for the ECU to relearn?
When resetting the ECU it will take about 50km (31 miles) to relearn.
Will check engine light go off after tightening gas cap?
As soon as it’s safe, pull over and make sure your gas cap is tight. Once you’re back on the road, your check engine light should go off within 10 or 20 miles.
Why is my catalyst not ready?
if the oxygen sensor and catalyst monitors are also not ready, the culprit is most likely a weak battery. if your battery is more than four years old, replace it and re-run the drive cycle. even though your car may start just fine, the pcm is hypersensitive to the slightest glitch in the battery.
How many drive cycles does it take to clear a code?
As I discussed earlier, most emissions-related DTCs take at least two drive cycles to set, so it stands to reason it will take at least two passes to turn off the MIL. Keep in mind the second drive cycle will not be complete until you turn off the ignition.
How many miles do you need to drive to reset computer?
So why is the light still on? Here’s something you probably don’t know: after clearing the car’s computer you will need to drive for about 50 to 100 miles. As you drive your car the computer will monitor all the sensors and register the results.
How long is an engine cycle?
Always refer to your vehicle service manual or a professional mechanic who has access to the exact drive cycle instructions — and follow them to ensure accuracy. In most cases, a correct drive cycle will take no longer than 15 minutes to complete.
What is the drive cycle for a 2007 Ford Focus?
Idle the vehicle for 15 seconds, and then drive at 40 MPH until engine coolant temperature is at least 170°F, which is normal engine operating temperature. 10 to 15 minutes of drive will achieve this.