Contour Enthusiasts Group Archives Forums General Troubleshooting driving cycle question

in n.y we are now having to deal with these new emissions reg's, so my question is this,and this may have been posted before.....i know that if i resest the pcm and take it to get inspected and it hasnt completed the driving cycle it'll fail,but i was wondering if i just cleared the codes and the memory with a scanner, and then brought it in would it or would it not erase the current driving cycle?? i'm wondering this b/c of the new test,and it takes like 20-30 miles for the cel to come on....any body help me here??

well, you could fix it.

What is the code?

i've been through this before, i dont remember the codes off hand, but they were bank 1 and bank 2 low voltage.....which i'm assuming are bad upper o2 synsors?? so i'm having those changed this afternoon.......but the other two codes were banks 1 & 2 air metering problems??? could this be o2 related as well? the car idles fine when i start it and let it warm up, but as soon as i start driving it and it gets to temp the rpm's jump at a stop.....now i've changed every gasket from lim up to tb and everyone between,still nothing

You will have to fix whatever faults are in the system.

The computer will also show "pending" codes that have not yet turned on the CEL and these will also (in addition to the incoplete monitor tests) likely cause the test to fail.

Steve

When the drive cycle has not been completed there will be a code P1000. Once the drive cycle has been completed that code goes away. When reading the codes is required for a smog test, the drive cycle must have been completed. If the drive cycle has not been completed, there could be a problem that the OBD II system hasn't done the test for yet. Two examples are the cat effeciency and fuel evap leaks.

When you clear the other codes, the P1000 is present until the drive cycle is completed. The same thing happens when the battery is disconnected.

"Ford Motor Company Driving Cycle"

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.