How to Complete a Drive Cycle
- Step 1: Finish Repairs and Clear all Fault Codes. This is the step that many inexperienced mechanics tend to forget — but it’s the most important.
- Step 2: Preparing the Vehicle.
- Step 3: Complete the Cold Start.
- Step 4: Start the road test.
- Step 5: Complete the Final Scan for Error Codes.
How do you complete a Ford f150 drive cycle?
Start from a stop and in overdrive, then moderately accelerate to 50 MPH and cruise for at least 15 seconds. Stop the vehicle and repeat without overdrive to 40 MPH cruising for at least 30 seconds. While at 40 MPH, activate overdrive and accelerate to 50 MPH and cruise for at least 15 seconds.
What does it mean to complete a drive cycle?
A drive cycle is a series of trips, usually one or two, that a vehicle is required to undergo so that the powertrain control module (PCM) can trigger the monitoring systems into readiness states allowing for retrieval of diagnostic data.
How do you complete a drive cycle to run a monitor for the EVAP system?
Start the engine and idle for four minutes, then drive in stop-and-go traffic for five minutes using smooth accelerations and decelerations. Stop and idle for 4 minutes. The EVAP monitor should be complete.
How do you finish a drive cycle? – Related Questions
How long do I need to drive my car to reset the computer?
In general, you will need to drive between 50-100 miles after you clear your car’s computer. Hopefully, this will get rid of the check engine light once and for all. If it doesn’t, there may be a more critical factor causing this item to turn on.
Can I pass emissions with EVAP not ready?
Gasoline Vehicles:
– 2000 and newer model year vehicles will need all emission monitors in READY or COMPLETE status, with the exception of the EVAP monitor. AN incomplete evaporative monitor will not cause a smog check failure.
How do you fix an EVAP system not ready?
if the evap monitor is not ready, verify that your fuel cap is tight and the level of fuel is between 1/4 and 3/4 full. if all the other monitors are ready, then do a couple more “cold” starts.
How do you force a readiness monitor?
Start the engine and idle the engine in drive for two and half minutes, with the A/C and rear defroster on if equipped. 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. Slow down to 30 km/h (20 mph) without braking.
What does monitor EVAP not ready mean?
A “not ready” result means your vehicle’s computer has not had a chance to check all of the parts of the emissions control system for problems – so it cannot determine if everything is working as designed.
How long does it take for readiness monitors to reset?
Driving 4-7 days in city and highway usually resets the monitors. Vehicle must meet basic operating criteria and complete its manufacturer drive cycle for a particular monitor. Check your owner’s manual for drive cycle information.
How many miles should I drive after resetting check engine light?
How Many Miles to Drive after Resetting Check Engine Light for Inspection. You have to drive about 50 to 100 miles on average to clear a check engine light.
How many monitors can be not ready?
The US Environmental Protection Agency (EPA) guidelines allow up to two monitors to be in a “not ready” state for model year 1996 through 2000 vehicles and one monitor “not ready” for 2001 or newer model year vehicles.
Can you pass emissions with one monitor not ready?
Answer: Assuming your vehicle is gasoline powered, it can be administered the California emissions inspection and pass the smog test even if one (1) incomplete monitor exisits.
How do I know if my monitor is ready?
Turn the ignition switch to the “ON” position for 15 seconds without starting the engine: If the “Check Engine” light blinks eight (8) times, then the monitors are “Not Ready” If the “Check Engine” light stays on solid, then the monitors are “Ready”
How can I turn off my check engine light to pass emissions?
Leave the battery disconnected for at least 15 minutes. Then put your key into the ignition and turn it three times to the “ON” position. This will clear the emissions data from the vehicle memory as well as the readiness flag data. Reconnect the positive battery cable and turn the key in the vehicle ignition.
Can you pass emissions with stored codes?
Yes, a car should still pass emissions with a pending code.
There is a difference between pending codes and hard codes. Pending codes mean that there may be a problem and your vehicle’s computer needs to run more diagnostics.
How long does it take for permanent DTC codes to erase?
A Permanent DTC will be erased one of two ways:
After three consecutive confirmed fault-free monitoring cycles. The MIL is extinguished and the Permanent DTC is cleared at the start of the fourth fault-free monitoring cycle. After one confirmed fault-free monitoring cycle following a scan tool “clear DTC” request.
Will a permanent code fail emissions?
How are PDTCs going to be used as part of a Smog Check inspection? Upon implementation, vehicles that have a PDTC stored in the OBD system will fail the Smog Check inspection regardless of whether the malfunction indicator light is illuminated.
What happens if I erase codes on car?
When a code clears, you know that the vehicle has been restored to good working order. However, there could be occasions when clearing the codes manually is part of the repair process. For example, a check engine light can be triggered when the gas cap isn’t tightened correctly.
Can dealers see cleared codes?
They won’t care, they will be able to tell how long ago it’s been since codes were cleared but that doesn’t affect warranty coverage. It just means they can’t diagnose the issue unless it happens again. The power train warranty may not cover the issue unless it’s an internal engine part.