How long is the drive cycle on a 2002 ford explorer?

Answer 1

The drive cycle is not one fixed amount of milage. It is made up of several individual sections to complete each readiness test. The individual readfiness tests require a specific series of functions to complete each with the EVAP requiring a cool down/warm up cycle cycle between each series, making them require the longest amount of time.

All told if one follows the exact manufactors drive cycle it can be completed in about 10 to 20 miles of driving but short of the specific routine most cars readiness tests can be completed with in about 75 miles of normal driving over a 2 to 3 day period.

1. The gas has to be between 1/4 and 3/4 full. Not above or below.

2. Start the vehicle and put it in drive and hold the brake.

3. Turn on the air conditioner and the rear defroster.

4. Sit in drive for 2 minutes.

5. Turn off AC and rear defroster.

6. Drive the vehicle up to 55 mph.

7. Decellerate down to 20 MPH, do not touch the gas or the brake.

8. You must do this 3 times and let the vehicle get cold between cycles.

The following steps are the specific drive cycles for each readiness area.

1. Drive in stop-and-go traffic with at lease 4 idle periods (30 seconds each) while observing the status of the OBD II monitor on the scan

tool. If the exhaust gas recirculation (EGR), heated oxygen sensor (HO2S), evaporative emission (EVAP), secondary air (AIR) (if applicable)

or catalyst efficiency monitor have not completed, drive on the highway at a constant speed over 64 km/hr (40 mph) not to exceed 104 km/hr

(65 mph) for up to 15 minutes. Heavy accelerations, sudden decelerations and wide open throttles are not recommended. If the scan tool

sends out a three pulse beep at any time, the OBD II drive cycle has completed.

Note: Vehicles equipped with the EVAP purge flow system or EVAP vapor management flow system monitor do not require EVAP monitor completion

to clear the DTC P1000 (refer to Section 1A for each monitor description).

If the exhaust gas recirculation (EGR), heated oxygen sensor (HO2S), evaporative emission (EVAP), secondary air injection (AIR)

(if applicable) or catalyst efficiency monitor has not completed, perform the corresponding monitor verification drive cycle in this section.

2. Bring the vehicle to a stop and retrieve Continuous Memory DTCs to verify the DTC P1000 has been erased. Refer to Section 4A, Diagnostic Subroutine DSR6 .

Monitor Repair Verification Drive Cycles

Comprehensive Component Monitor Repair Verification Drive Cycle:

1. Refer to and complete the Vehicle Preparation For OBD II Drive Cycle before initiating the following repair verification steps.

2. Start the engine and go through the entire OBD II Drive Cycle until the Comprehensive Component Monitor shows the completion status by

clearing the code P1000 on the scan tool.

3. If the entire OBD II Drive Cycle has been performed and the Comprehensive Component Monitor check has not completed, rerun Quick Test.

Refer to Section 4A, Diagnostic Subroutines, DSR 1 .

EGR Monitor Repair Verification Drive Cycle:

1. Note: The ambient air temperature or IAT PID must read a minimum of 0° C (32°F) to initiate the EGR monitor.

Refer to and complete the Vehicle Preparation for OBD II Drive Cycle in this section before initiating the

following repair verification steps.

2. Start the engine and drive the vehicle for 6 minutes.

1. Drive in stop-and-go traffic for 5 minutes with at least two idle periods.

2. Accelerate to 72 km/h (45 mph) (56 km/h on Escort/Tracer at more than one half WOT). Maintain speed for 1 minute.

3. Rerun Quick Test. Refer to Section 4A, Diagnostic Subroutine, DSR 1 .

EVAP Running Loss Monitor Repair Verification Drive Cycle:

1. Perform the Preparation for OBD II Drive Cycle section.

2. With the scan tool, verify the FTP V PID reads between 2.4 and 2.8 volts with the gas cap removed. Reinstall gas cap.

3. With the scan tool, view the OBD II monitors through the On-Board System Readiness Menu.

4. Drive the vehicle at a constant speed between 56 km/hr (35 mph) and 104 km/hr (65 mph) with throttle as steady as possible. Observe the

HO2S monitor on the scan tool until it completes (or refer to the Fuel Monitor or HO2S Monitor repair Verification Drive Cycle in this

section).

5. Bring the vehicle to a stop and access the following PIDs with the scan tool: IAT, FLI, FTP, V, EVAPPDC, EVAPCV

6. Verify the following EVAP monitor entry condition: IAT between 10-38° (50-100°F).

7. Drive the vehicle on the highway with a constant speed over 64 km/hr (40 mph) with throttle as steady as possible. During this time,

verify the following additional EVAP monitor entry conditions using the FLI and FTPV PIDs.

* FLI stable ± 5% between the limits of 15% and 85% tank fill.

* FTP V stable within ±0.1 volt.

8. Prior to running the EVAP monitor, when the EVAPPCD PID is less than 75%, the canister vent solenoid is open and the system is unsealed.

To initiate the EVAP monitor, the EVAPPDC PID must increase to at least 75%. At this time, the EVAPCV PID will then display 100%

(canister vent solenoid closed to seal the system and the monitor will begin to run. Continue to drive at steady throttle with light

steering until the EVAPCV PID displays 0% (canister vent solenoid open, system unsealed). If this step does not occur as described,

proceed to the following note, otherwise proceed to Step 9.

Note: During the drive cycle or hot ambient temperatures, fuel vapor (from the canister and/or tank) may keep the test from starting.

This can be observed on the can tool when either:

1. The EVAPPDC PID never reaches 75% with stable FLI and FTP PID readings.

2. The EVAPCV PID never goes to 100% (canister vent never closes) when the EVAPPDC PID is above the 75% minimum to start the test.

9. Bring the vehicle to a stop.

10. With the scan tool, view the EVAP monitor for completion through the On-Board System Readiness Menu. Repeat Step 7 if the EVAP monitor

is not complete.

Catalyst Monitor Repair Verification Drive Cycle:

1. Make sure that the inlet air temperature (or ambient air temperature) is above -18°C (0°F), then refer to Step 3 of the Vehicle

Preparation for OBD II Drive Cycle in this section.

2. Start the engine and drive the vehicle for 25 minutes.

1. Drive in stop-and-go traffic for 20 minutes, include six different constant speeds between 40 and 72 km/h (25 and 45 mph).

2. Drive on expressway or highway for an additional 5 minutes.

3. Rerun Quick Test. Refer to Section 4A, Diagnostic Subroutine DSR 1 .

Fuel Monitor or HO2S Monitor Repair Verification Drive Cycle:

1. Refer to and complete the Vehicle Preparation For OBD II Drive Cycle in this section before initiating the following repair verification

steps.

2. Start the engine and drive the vehicle for 7 minutes.

1. Drive in stop-and-go traffic for 6 minutes, include one idle.

2. Accelerate to 72 km/h (45 mph) [56 km/h (35 mph) on Escort/Tracer at more than 1/2 throttle]. Maintain speed for 1 minute.

3. Rerun Quick Test. Refer to Section 4A, Diagnostic Subroutine, DSR 1 .

Misfire Monitor Repair Verification Drive Cycle:

1. For applications with the Fuel Level Input (FLI) circuit to the PCM (Pin 12), check the fuel gauge and the FLI PID on the scan tool

(if available). The Misfire Monitor can only be tested if the fuel gauge reads above one quarter full or the FLI PID is above 15%

(percentage fuel tank fill).

2. Start the engine and drive the vehicle to a location where speeds can reach 88 to 97 km/h (55 to 60 mph) and coast down to 64 km/h

(40 mph) without traffic interference.

3. Accelerate at wide-open throttle to allow vehicle to shift at red-line (if equipped with a tachometer). Immediately return to normal

speed limits.

4. Perform the following drive procedure three consecutive times.

1. Accelerate on highway to 97 km/h (60 mph). Maintain speed for 30 seconds.

2. Coast down with foot off the accelerator pedal from 97 km/h to 64 km/h (60 mph to 40 mph).

5. Rerun Quick Test. Refer to Section 4A, Diagnostic Subroutine, DSR 1 .

Secondary Air Monitor Repair Verification Drive Cycle:

1. Refer to and complete the Vehicle Preparation For OBD II Drive Cycle in this section before initiating the following repair verification

steps.

2. Start the engine and proceed through the entire OBD II Drive Cycle until the Secondary Air Monitor shows the On-Board Readiness Menu

completion status on the scan tool.

3. If the entire OBD II Drive Cycle has been performed and the Secondary Air Monitor check has not completed, rerun Quick Test. Refer to

Section 4A, Diagnostic Subroutine, DSR 1 .

Trak

Hope this helps

Will Carroll

elvesbrew@gmail.com