The following procedure is designed to execute and complete the OBDII monitors and to clear the Ford P1000, I/M readiness code. To complete a specific monitor for repair verification, follow the steps above, then continue with the step described by the appropriate monitor found under the "OBDII Monitor Exercised" column.
Driving Tips
1. Most OBDII monitors will complete more readily using a "steady foot" driving style during cruise or acceleration modes. Operating the throttle in a "smooth" fashion will minimize the time required for monitor completion.
2. Fuel tank level should be between 1/2 and 3/4 fill with 3/4 fill being the most desirable.
3. The Evaporative Monitor can only operate during the first 30 minutes of engine operation after an 8 hour rest. When executing the procedure for this monitor, stay in part throttle mode (TP MODE = PT) and drive in a smooth fashion to minimize "fuel slosh".
Pre-Test Procedure
1. MIL indicator must be off
2. Fuel tank Must be 1/2 (15% Min) to 3/4 (85% Max) full (Only for EVAP test)
3. Install scan tool
4. Turn key on with the engine off
5. Turn key off, then on
6. Select the appropriate Vehicle and Engine qualifier
7. Clear all DTC's/Perform a PCM Reset. (See Powertrain Control Module (PCM) Reset)
7a. This bypasses the 8 hour engine soak timer used for the EVAP test
7b. Also resets the OBDII Monitor status
8. Begin to monitor the following PIDs: ECT, EVAPDC (EVAP Purge Solenoid Duty Cycle), FLI (Fuel Level Indicator) and TP MODE (Throttle Position).
9. Start the vehicle WITHOUT turning the Key Off
10. Idle vehicle for 15 seconds
11. Drive away at 40 MPH until ECT is at least 170° F
Specific Monitor Procedures
HEGO
1. Cruise at 64 Km/h (40 MPH) for up to 4 minutes.
EVAP
1. Cruise at 72 to 104 Km/h (45 to 65 MPH) for 10 minutes (avoid sharp turns and hills)
Catalyst
1. Drive in stop and go traffic conditions. Include five different constant cruise speeds, ranging from 25 to 45 MPH over a 10 minute period.
EGR
1. From a stop, accelerate to 45 MPH at 1/2 to 3/4 throttle. Repeat 3 times.
SEC AIR/CCM (Engine)
1. Bring the vehicle to a stop. Idle with transmission in drive (neutral for M/T) for 2 minutes.
CCM (Trans)
1. For M/T
1a. Accelerate from 0 to 50 MPH
1b. From a stop, accelerate to 65 MPH.
Decelerate at closed throttle until 40 MPH (no brakes).
1c. Repeat this 3 times.
2. For A/T
2a. From a stop and in overdrive, moderately accelerate to 50 MPH and cruise for at least 15 seconds.
2b. Stop vehicle and repeat without overdrive to 40 MPH cruising for at least 30 seconds.
2c. While at 40 MPH, activate overdrive and accelerate to 50 MPH and cruise for at least 15 seconds.
2d. Stop for at least 20 seconds
2e. Repeat step 2 five times.
Misfire & Fuel Monitors
1. From a stop, accelerate to 65 MPH.
2. Decelerate at closed throttle until 40 MPH (no brakes).
3. Repeat this 3 times.
EVAP Test Additional Detail
This is the hardest test to complete. Two tests are actually run:
1) Gross leak FTP (Fuel Tank Pressure) 0.00 to 127.0 H20 9.34 in/Hg (Vacuum)
2) Small leak FTP (Fuel Tank Pressure) 0.00 to 0.51 H20 0.0375 in/Hg (Vacuum)
Monitor FTP (Fuel Tank Pressure) Refer to Above
Monitor EVAPDC (EVAP Duty Cycle) Must be >75%
Monitor TP MODE (Throttle Position) Must be PT
Verify FLI (Fuel Level Indicator) is 1/2 (15% Min) to 3/4 (85% Max) full
Test must be run after 8 hours of vehicle rest
Test must complete within the first 30 minutes of driving
Is IAT between 40°F and 100°F and the altitude below 8000 feet?
If Not, complete the following steps but, note that step 14 will be required to "bypass " the EVAP monitor and clear the P1000.
If the P1000 code must be bypassed, the PCM must detect the conditions once (twice on some applications) before the EVAP monitor can be "bypassed" and the P1000 cleared. The Evap "bypassing" procedure is:
A. Run through all of the other monitors
B. Park vehicle for a minimum of 8 hours
C. Repeat drive cycle step below but *do not reset the PCM or the monitors*
If the IAT or BP are out of range, a P1000 should be set after the drive cycle, which allows a bypass to occur
1. Cruise at 45 to 65 MPH for 10 minutes (avoid sharp turns and hills)
If the test starts but resets, there is usually a fine leak (gas cap?)
Last update: Dec 7th, 2019
