Smog check - Diesel Forum - TheDieselStop.com
6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

 
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post #1 of 8 (permalink) Old 04-20-2017, 10:40 PM Thread Starter
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Smog check

Hi all. I live in Calif. where smog checks are required and have had several checks over the years with no problems. Today I took it in and everything was fine except I had a "computer/ PCM not ready". I was told that it had to "relearn" the driving parameters by driving it, which I did about 40 miles or so. I brought it back and still no go. What is the process of "relearning" ? I can't remember disconnecting the batteries recently and the only other thing I can think of that may have caused this is that it has been sitting for awhile,but the batteries are on a constant trickle charge from the solar panels I have on my camper unit and have not been even low as I had gone out and checked it. The truck runs great and has always been kept stock.
thanks for any help

97 F-250 ex-cab autotrans,downpipe,3gauge,pillerpod,aux. tran.cooler and filter,air bags. SOLD
New ride:2005 F-350 Lariat Ex-cab 4x4,Auto meter gauges ,In-dash Pioneer Nav.,Coolant filter,Timbrins,and Rancho 9000xl shocks. Supresprings,ScangaugeII,Seat heater mod,Heated mirror mod,aux. back-up lights,Daylighter driving lights
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post #2 of 8 (permalink) Old 04-21-2017, 09:20 AM
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I'm not sure what all conditions the PCM needs to see to ready all systems but 40 miles might not do it especially if you just went for a 40 mile drive. It likely needs to see several restarts, cold starts, warm starts, WOT conditions, etc. If your in a hurry, the Ford dealer might be able to simulate all of this and get the systems ready with the IDS scan tool. Some vehicles, this can be done but IDK if the 6.0L is one of them.

2007 F350 SRW 6.0L Auto, 3.73LS, 172"WB 4x4. Viper Alarm/RS, WD pillar Guages,AutoEnginuity, 100gal polished alum fuel tank.
All Sold: 99.5, early03 , 2004 - all were 172" wb 4x4 lariat's.

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post #3 of 8 (permalink) Old Yesterday, 12:39 AM Thread Starter
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Thanks Phil G. that is what I figured and have been driving the crap out if it and over the last few days have put over 100 mi. on it with both hot and cold restarts. Today I did a "WOT" wide open throttle which I do not do that often as there is a camper in the bed and I am getting a little up there in years( I also figured that I would save that for when I get a Mustang GT ..hope hope . I was hoping some one may know the factory what the recommended for this. I am just trying to avoid paying $60+ for another failed test. Thanks again for the advice.

97 F-250 ex-cab autotrans,downpipe,3gauge,pillerpod,aux. tran.cooler and filter,air bags. SOLD
New ride:2005 F-350 Lariat Ex-cab 4x4,Auto meter gauges ,In-dash Pioneer Nav.,Coolant filter,Timbrins,and Rancho 9000xl shocks. Supresprings,ScangaugeII,Seat heater mod,Heated mirror mod,aux. back-up lights,Daylighter driving lights
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post #4 of 8 (permalink) Old Yesterday, 07:02 AM
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Quote:
Originally Posted by Big Mac View Post
Hi all. I live in Calif. where smog checks are required and have had several checks over the years with no problems. Today I took it in and everything was fine except I had a "computer/ PCM not ready". I was told that it had to "relearn" the driving parameters by driving it, which I did about 40 miles or so. I brought it back and still no go. What is the process of "relearning" ? I can't remember disconnecting the batteries recently and the only other thing I can think of that may have caused this is that it has been sitting for awhile,but the batteries are on a constant trickle charge from the solar panels I have on my camper unit and have not been even low as I had gone out and checked it. The truck runs great and has always been kept stock.
thanks for any help
There are drive cycles that can be performed intended to help induce the proper conditions and driving modes to allow the OBD Monitors to run and complete which once done should clear the P1000 code indicating the system is ready. Then you should pass the smog test provided there are no codes in the system related to emissions. Here is the drive cycle you need from the 2007 WSM for the 6.0L PSD.


On-Board Diagnostic (OBD) Drive Cycle

Description

NOTICE:
Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle.

Note:
Vehicles equipped with power take-off (PTO) or auxiliary idle control must have that system disengaged before the OBD drive cycle is initiated.

The primary intention of the OBD drive cycle is to clear the DTC P1000 and to satisfy the specifications for the Society of Automotive Engineers (SAE) specification J1979. Each OBD monitor must run during the drive cycle.

If the drive cycle is completed and P1000 is not cleared, repeat the entire drive cycle. If a particular step is interrupted, simply repeat the drive mode. If the drive cycle is interrupted with a key-off, only drive modes that were incomplete must be run.

Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission and load-related monitors.

Drive Cycle Procedure:
  1. Key ON. Do not crank until the WAIT TO START light cycles, or at least 10 seconds, whichever occurs first.
  2. Start the engine. Idle in PARK or NEUTRAL for 40 seconds.
  3. Before continuing, engine oil temperature (EOT) must exceed 60C (140F).
  4. The following outlines the appropriate conditions for running certain OBD monitors that require the engine to be under load:
    1. Accelerate steadily to third gear (M/T use fourth gear) and hold at 1,500 RPM for 3 seconds. Accelerate steadily from 56 km/h (35 mph) to 105 km/h (65 mph) over approximately 15 seconds (M/T 11 seconds minimum).
    2. Repeat Step 4.a. three times while maintaining the conditions in Step 4.a.
    3. Before proceeding, turn all accessories off and disengage tow/haul/overdrive cancel.
  5. Idle the vehicle for 20 seconds in PARK or NEUTRAL.
  6. Key OFF.
  7. Start the engine. Idle in PARK or NEUTRAL for 40 seconds.
  8. Repeat the Quick Test.

Note: If P1000 is present after running the drive cycle:
  • Repeat Step 4.a., being certain to maintain a minimum mass fuel desired (MFDES) of 35 mg/stroke above 2,000 RPM for 11 seconds. Also, maintain a minimum MFDES of 30 mg/stroke above 2,800 RPM for at least 6 seconds.
  • Repeat Step 8. MFDES must remain below 12 mg/stroke for 11 consecutive seconds.

.
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Last edited by ford_doctor; Yesterday at 07:11 AM.
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post #5 of 8 (permalink) Old Yesterday, 09:47 AM
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That's what I was looking for. I have it for GM but could not find it for the 6.0L. To get my older GM gassers with evap issues to pass, I have to clear the codes on a cold day, run them through the drive cycle procedure then rush them into the drive clean center for a test. The Evap system will show not ready but we are allowed to have 1 system not ready and still pass in our area.

2007 F350 SRW 6.0L Auto, 3.73LS, 172"WB 4x4. Viper Alarm/RS, WD pillar Guages,AutoEnginuity, 100gal polished alum fuel tank.
All Sold: 99.5, early03 , 2004 - all were 172" wb 4x4 lariat's.

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post #6 of 8 (permalink) Old Yesterday, 10:21 AM
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Calif isn't that lenient. ALL readiness tests have to be completed. I have to tell my customers NOT to run to the smog shop right after a repair and code clearing.
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post #7 of 8 (permalink) Old Yesterday, 11:25 AM
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It gets even better. I have a 2000 Explorer (only 60K miles) and it has to be smogged but it also only requires an OBD test and 2 systems can be not ready due to it's age...it probably only has about 4 systems monitored by OBD. Talk about a cash grab!

2007 F350 SRW 6.0L Auto, 3.73LS, 172"WB 4x4. Viper Alarm/RS, WD pillar Guages,AutoEnginuity, 100gal polished alum fuel tank.
All Sold: 99.5, early03 , 2004 - all were 172" wb 4x4 lariat's.

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post #8 of 8 (permalink) Old Yesterday, 04:11 PM Thread Starter
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This is what I was looking for I want to thank you!!!

97 F-250 ex-cab autotrans,downpipe,3gauge,pillerpod,aux. tran.cooler and filter,air bags. SOLD
New ride:2005 F-350 Lariat Ex-cab 4x4,Auto meter gauges ,In-dash Pioneer Nav.,Coolant filter,Timbrins,and Rancho 9000xl shocks. Supresprings,ScangaugeII,Seat heater mod,Heated mirror mod,aux. back-up lights,Daylighter driving lights
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