Drive cycle test readiness process?

[babbage]

I replaced my starter and the PCM hasn't gone to ready state yet.
I have the Scangauge2 and know how to tell which tests haven't been done yet, but my question is: does anyone have a good known to work sequence for getting all systems checked and "ready state" quickly.

Found the below and was going to try it. As I've got to get my NYS Inspection sticker..



STEP BY STEP DRIVE CYCLE TEST READINESS PROCEDURE
EACH OEM’S DRIVE CYCLE MAY VARY
CHECK YOUR VEHICLE SPECIFIC FOR VARIATIONS OR UPDATES

1- VEHICLE SHOULD BE STARTED WITH THE ENGINE COLD

2-LET VEHICLE IDLE UNTIL THE ENGINE IS AT NORMAL OPERATING TEMPERATURE 180 0R HIGHER (GENERALLY 5 TO 10 MINUTES

3 - PUT VEHICLE IN GEAR (WITH BRAKE APPLIED) AND IDLE FOR NO LESS THAN 45 SECONDS

4 - ACCELERATE TO 45 MPH WITH NO MORE THAN ¼ THROTTLE AND SPEED 10 SECONDS

5 - DECELERATE TO 35 –38 MPH AND MAINTAIN A STEADY THROTTLE AND SPEED FOR ONE MINUTE

6 - DECELERATE TO 25 MPH.AND THEN OPERATE BETWEEN 25 MPH, AND 40 MPH FOR 4 MINUTES do not operate more than ¾ throttle for this test segment.

7 - DECELERATE ENGINE AND IDLE FOR 10 SECONDS

8 - ACCELERATE GENTLY TO 55 MPH USING NO MORE THAT ½ THROTTLE. MAINTAIN SPEED FOR FULL 10 SECONDS

9 - CONTINUE DRIVING AT 40 MPH. –55 MPH USE A STEADY THROTTLE PRESSURE AND MAINTAIN SPEED FOR A FULL 2 MINUTES.

10 - RETURN TO YOUR SHOP AND SHUT THE VEHICLE OFF

IT IS RECOMMENDED THAT ABOVE I/M READINESS DRIVE CYCLE TEST BE CONDUCTED A SECOND TIME

[babbage]

Update: I found this Ford Motor Company Driving Cycle
(http://www.obdii.com/drivecycleford.html)
Description of OBDII Drive Cycle
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 steps 1 through 4, then continue with the step described by the appropriate monitor found under the "OBDII Monitor Exercised" column. When the ambient air temperature is outside 4.4 to 37.8°C (40 to 100° F), or the altitude is above 2438 meters (8000 feet), the EVAP monitor will not run. If the P1000 code must be cleared in these conditions, the PCM must detect them once (twice on some applications) before the EVAP monitor can be "bypassed" and the P1000 cleared. The Evap "bypassing" procedure is described in the following drive cycle.

The OBDII Drive Cycle will be performed using a scan tool. Consult the instruction manual for each described function. NOTE: A detailed description of a Powertrain Control Module (PCM) Reset is found in this section, refer to the table of contents.

Drive Cycle Recommendations:

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.
Fuel tank level should be between 1/2 and 3/4 fill with 3/4 fill being the most desirable.
The Evaporative Monitor can only operate during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize "fuel slosh".

WARNING
STRICT OBSERVANCE OF POSTED SPEED LIMITS AND ATTENTION TO DRIVING CONDITIONS ARE MANDATORY WHEN PROCEEDING THROUGH THE FOLLOWING DRIVE CYCLES.

For best results, follow each of the following steps as accurately as possible:

OBDII Monitor
Exercised

Drive Cycle Procedure
Purpose of
Drive Cycle Procedure
Drive Cycle
Preparation

1. Install scan tool. Turn key on with the engine off. Cycle key off, then on. Select appropriate Vehicle & Engine qualifier. Clear all DTC's/ Perform a PCM Reset. Bypasses engine soak timer. Resets OBDII Monitor status.


2. Begin to monitor the following PIDs: ECT, EVAPDC, FLI (if available) and TP MODE. Start vehicle WITHOUT returning to Key Off.

3. Idle vehicle for 15 seconds. Drive at 64 Km/h (40 MPH) until ECT is at least 76.7°C (170° F).

Prep for Monitor Entry
4. Is IAT within 4.4 to 37.8°C (40 to 100° F)? If Not, complete the following steps but, note that step 14 will be required to "bypass " the Evap monitor and clear the P1000. Engine warm-up and provide IAT input to the PCM.

HEGO 5. Cruise at 64 Km/h (40 MPH) for up to 4 minutes. Executes the HEGO monitor.

EVAP 6. Cruise at 72 to 104 Km/h (45 to 65 MPH) for 10 minutes (avoid sharp turns and hills) Note, to initiate the monitor: TP MODE should =PT, EVAPDC must be >75%, and FLI must be between 15 and 85% Executes the EVAP Monitor (If IAT is within 4.4 to 37.8° (40 to 100°F))
Catalyst

7. Drive in stop and go traffic conditions. Include five different constant cruise speeds, ranging from 40 to 72 Km/h (25 to 45 MPH) over a 10 minute period. Executes the Catalyst Monitor.

EGR 8. From a stop, accelerate to 72 Km/h (45 MPH) at 1/2 to 3/4 throttle. Repeat 3 times. Executes the EGR Monitor.
SEC AIR/CCM (Engine) 9. Bring the vehicle to a stop. Idle with transmission in drive (neutral for M/T) for 2 minutes. Executes the ISC portion of the CCM.
CCM (Trans)

10. For M/T, accelerate from 0 to 80 Km/h (o to 50 MPH), continue to step


11. For A/T, from a stop and in overdrive, moderately accelerate to 80 Km/h (50 MPH) and cruise for at least 15 seconds. 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. Executes the transmission portion of the CCM.
Misfire & Fuel Monitors

11. From a stop, accelerate to 104 Km/h (65 MPH). Decelerate at closed throttle until 64 Km/h (40 MPH) (no brakes). Repeat this 3 times. Allows learning for the misfire monitor.
Readiness Check

12. Access the ON-Board System Readiness (OBDII monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, go to step 13. Determines if any monitor has not completed.
Pending Code Check and Evap Monitor "Bypass" Check

13. With the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concern. Otherwise, rerun any incomplete monitor.
Note: if the EVAP monitor is not complete AND IAT was out of the 4.4 to 37.8° C (40 to 100° F) temperature range in step #4, or the altitude is over 2438 m. (8000 ft.), the Evap "bypass" procedure must be followed.
Proceed to step

14. Determines if a pending code is preventing the clearing of P1000.
Evap Monitor "Bypass" 14. Park vehicle for a minimum of 8 hours. Repeat steps 2 through 12. DO NOT REPEAT STEP 1. Allow the "bypass" counter to increment to two.



Reprinted on OBDII web site courtesy of Ford Motor Company
© Ford Motor Company

[EMAS]

You do not have to do that crazy driving to the specific speeds and at specific throttle positions.

Start with a stone cold engine that has been shut off for at least 8hrs. Drive normally in an around town setting until you get the engine to normal operating temp. Normal with traffic type acceleration. Once you are up to normal temp drive at above 45mph for a couple of miles. All of the monitors should have ran other than possibly the EVAP which won't run outside of the temps or altitude listed above nor with the tank too full or too low. If it still shows not completed for the EVAP shut the car off and let it sit for at least 8 hrs to let the timer run it's course. The start and drive the car normally until it reaches operating temp again, it should then show the EVAP as completed even if the temp or altitude is outside of those ranges.

[babbage]

You do not have to do that crazy driving to the specific speeds and at specific throttle positions.

Start with a stone cold engine that has been shut off for at least 8hrs. Drive normally in an around town setting until you get the engine to normal operating temp. Normal with traffic type acceleration. Once you are up to normal temp drive at above 45mph for a couple of miles. All of the monitors should have ran other than possibly the EVAP which won't run outside of the temps or altitude listed above nor with the tank too full or too low. If it still shows not completed for the EVAP shut the car off and let it sit for at least 8 hrs to let the timer run it's course. The start and drive the car normally until it reaches operating temp again, it should then show the EVAP as completed even if the temp or altitude is outside of those ranges.

Thanks for this.

[EMAS]

Thanks for this.

No problem, you need to keep in mind that all the monitors are supposed to run themselves in normal everyday driving or they wouldn't really serve a purpose.

Not that long ago our beater Taurus had a CEL. Now that car has been occasionally setting an EGR code for years, sometimes twice in a month or so other times not for a number of months and thousands of miles. I plugged in the scanner to a car that had sat overnight verified it was that same nuisance code and then cleared them. I then went and drove where I was going on a route that I travel normally. Couple of stop signs and a stop light, 25, 35, and 50 mph speed limits, by the time I had gone no more than 10 miles all of the monitors had run and I didn't do anything other than drive with the normal flow of traffic.

[DWSTANG67]

Update: I found this Ford Motor Company Driving Cycle
(http://www.obdii.com/drivecycleford.html)
Description of OBDII Drive Cycle
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 steps 1 through 4, then continue with the step described by the appropriate monitor found under the "OBDII Monitor Exercised" column. When the ambient air temperature is outside 4.4 to 37.8°C (40 to 100° F), or the altitude is above 2438 meters (8000 feet), the EVAP monitor will not run. If the P1000 code must be cleared in these conditions, the PCM must detect them once (twice on some applications) before the EVAP monitor can be "bypassed" and the P1000 cleared. The Evap "bypassing" procedure is described in the following drive cycle.

The OBDII Drive Cycle will be performed using a scan tool. Consult the instruction manual for each described function. NOTE: A detailed description of a Powertrain Control Module (PCM) Reset is found in this section, refer to the table of contents.

Drive Cycle Recommendations:

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.
Fuel tank level should be between 1/2 and 3/4 fill with 3/4 fill being the most desirable.
The Evaporative Monitor can only operate during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize "fuel slosh".

WARNING
STRICT OBSERVANCE OF POSTED SPEED LIMITS AND ATTENTION TO DRIVING CONDITIONS ARE MANDATORY WHEN PROCEEDING THROUGH THE FOLLOWING DRIVE CYCLES.

For best results, follow each of the following steps as accurately as possible:

OBDII Monitor
Exercised

Drive Cycle Procedure
Purpose of
Drive Cycle Procedure
Drive Cycle
Preparation

1. Install scan tool. Turn key on with the engine off. Cycle key off, then on. Select appropriate Vehicle & Engine qualifier. Clear all DTC's/ Perform a PCM Reset. Bypasses engine soak timer. Resets OBDII Monitor status.


2. Begin to monitor the following PIDs: ECT, EVAPDC, FLI (if available) and TP MODE. Start vehicle WITHOUT returning to Key Off.

3. Idle vehicle for 15 seconds. Drive at 64 Km/h (40 MPH) until ECT is at least 76.7°C (170° F).

Prep for Monitor Entry
4. Is IAT within 4.4 to 37.8°C (40 to 100° F)? If Not, complete the following steps but, note that step 14 will be required to "bypass " the Evap monitor and clear the P1000. Engine warm-up and provide IAT input to the PCM.

HEGO 5. Cruise at 64 Km/h (40 MPH) for up to 4 minutes. Executes the HEGO monitor.

EVAP 6. Cruise at 72 to 104 Km/h (45 to 65 MPH) for 10 minutes (avoid sharp turns and hills) Note, to initiate the monitor: TP MODE should =PT, EVAPDC must be >75%, and FLI must be between 15 and 85% Executes the EVAP Monitor (If IAT is within 4.4 to 37.8° (40 to 100°F))
Catalyst

7. Drive in stop and go traffic conditions. Include five different constant cruise speeds, ranging from 40 to 72 Km/h (25 to 45 MPH) over a 10 minute period. Executes the Catalyst Monitor.

EGR 8. From a stop, accelerate to 72 Km/h (45 MPH) at 1/2 to 3/4 throttle. Repeat 3 times. Executes the EGR Monitor.
SEC AIR/CCM (Engine) 9. Bring the vehicle to a stop. Idle with transmission in drive (neutral for M/T) for 2 minutes. Executes the ISC portion of the CCM.
CCM (Trans)

10. For M/T, accelerate from 0 to 80 Km/h (o to 50 MPH), continue to step


11. For A/T, from a stop and in overdrive, moderately accelerate to 80 Km/h (50 MPH) and cruise for at least 15 seconds. 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. Executes the transmission portion of the CCM.
Misfire & Fuel Monitors

11. From a stop, accelerate to 104 Km/h (65 MPH). Decelerate at closed throttle until 64 Km/h (40 MPH) (no brakes). Repeat this 3 times. Allows learning for the misfire monitor.
Readiness Check

12. Access the ON-Board System Readiness (OBDII monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, go to step 13. Determines if any monitor has not completed.
Pending Code Check and Evap Monitor "Bypass" Check

13. With the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concern. Otherwise, rerun any incomplete monitor.
Note: if the EVAP monitor is not complete AND IAT was out of the 4.4 to 37.8° C (40 to 100° F) temperature range in step #4, or the altitude is over 2438 m. (8000 ft.), the Evap "bypass" procedure must be followed.
Proceed to step

14. Determines if a pending code is preventing the clearing of P1000.
Evap Monitor "Bypass" 14. Park vehicle for a minimum of 8 hours. Repeat steps 2 through 12. DO NOT REPEAT STEP 1. Allow the "bypass" counter to increment to two.



Reprinted on OBDII web site courtesy of Ford Motor Company
© Ford Motor Company


+1 for posting this i had a problem this year with inspection, i usally just load stock tune and drive around for a few days( WITCH SUCKS ON A STOCK TUNE ). But this year it didn't work so i followed the procedure to the tee and it passed. Then right after inspection I reloaded my Lidio tune. :burnout:

[NavySeabee]

4 - ACCELERATE TO 45 MPH WITH NO MORE THAN ¼ THROTTLE AND SPEED 10 SECONDS

5 - DECELERATE TO 35 –38 MPH AND MAINTAIN A STEADY THROTTLE AND SPEED FOR ONE MINUTE

6 - DECELERATE TO 25 MPH.AND THEN OPERATE BETWEEN 25 MPH, AND 40 MPH FOR 4 MINUTES do not operate more than ¾ throttle for this test segment.

7 - DECELERATE ENGINE AND IDLE FOR 10 SECONDS

8 - ACCELERATE GENTLY TO 55 MPH USING NO MORE THAT ½ THROTTLE. MAINTAIN SPEED FOR FULL 10 SECONDS

9 - CONTINUE DRIVING AT 40 MPH. –55 MPH USE A STEADY THROTTLE PRESSURE AND MAINTAIN SPEED FOR A FULL 2 MINUTES.



Do steps 4-9 above need to be done in that order or can you switch them around as long as each step is executed? I may not want to be doing step 7 in the middle of I95 or step 8 through a construction zone. :drive:

[clintons4]

My car must be broke. I can't get it to ready status to save my life. I have almost lost hope. My scanner even takes foreeeeever to communicate with the car. It's sitting in my driveway until I can "get" an inspection sticker.

[vegasmarauder]

The EVAP monitor (from steady speed driving) is the last one to reset becuase it is the lowest priority one. This is out of the 2003 Ford Emissions Diagnosis Manual which has the drive cycle procedure. The other monitors have to set first. So, the normal way is to do the low speed stop and starts on surface streets and then on the highway for the last steady state 55 MPH one. If the fuel sloshes too much or the too aggresive on the throttle, it won't test the EVAP, which is why some people end up having to drive the steady speed for quite a while. The PCM constantly is monitoring the system and "testing" everything on every drive. The EVAP test may not run every time the car is driven due to not meeting the parameters to run it.

[jaywish]

Which monitors are not ready?

Are there any pending codes?

[clintons4]

Which monitors are not ready?

Are there any pending codes?


If you are asking me, I have codes for lean bank 1 and bank 2. I started a thread about it and checked all kinds of stuff and still no luck. I drove the car about 300 miles and it still won't complete a drive cycle.

Here is the link to the thread. None of the issues I have are corrected after replacing and testing several different things. It left off with no insight on why my car will not complete a drive cycle. :confused:

http://mercurymarauder.net/forums/showthread.php?t=91514

[EMAS]

If you are asking me, I have codes for lean bank 1 and bank 2. I started a thread about it and checked all kinds of stuff and still no luck. I drove the car about 300 miles and it still won't complete a drive cycle.

Here is the link to the thread. None of the issues I have are corrected after replacing and testing several different things. It left off with no insight on why my car will not complete a drive cycle. :confused:

http://mercurymarauder.net/forums/showthread.php?t=91514

If you have O2 related codes it will never complete the catalyst monitor.

[jaywish]

What he said.

The codes must be rectified. I don't know if I have any useful input on that but will read your thread.

[clintons4]

What he said.

The codes must be rectified. I don't know if I have any useful input on that but will read your thread.


Awesome thanks. Any info or ideas would be appreciated.

[clintons4]

If you have O2 related codes it will never complete the catalyst monitor.


Well it did at one point throw the code for the O2 and Heated O2(complete list of codes in the other thread). Once I cleared the codes after cleaning IAC it did not seem to throw them again. The car has the original O2's with around 80k now. Full SW exhaust.