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Old 12-16-2013, 12:18 PM   #1
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Default evap will not complete its diagnostic

hello all. i recently recommissioned my dads 99 park ave involuntarily. took it to be emissions test and it failed due to the checks not being done. after running an entire tank thru the thing, i plugged my scanner into it and the EVAP is still reading INC. i was wondering what the exact parameters are in order to get it to pass. (or even complete the check).

ive tried covering the grille in an effort to make it run hotter to maybe kick start it into checking the evap but i can only get it to stay at 170 while driving. it will warm up to 195 and drop right down when the t-stat opens, so im pretty sure that isnt it.

any help is greatly appreciated!
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Old 12-16-2013, 12:49 PM   #2
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there are minimum temp ratings in it and its unlikely to complete until a warm day or two. you should be able to get the others though, ny if not all places allow one inc on 2000+ and 2 on 96-99
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Old 12-16-2013, 12:54 PM   #3
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good to know. everything else reads ok on my scanner. just the evap is inc. im going to try to cover the radiator as well as the grille. hopefully that will get it over the threshold. seems like i read somewhere on here that it needs to be at 180*. of course i cant find that post now.

i just hope that they allow one inc here. being the largest producers of steel in the nation are less than 5 miles from my house, im not sure if that will fly or not.
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Old 12-16-2013, 12:56 PM   #4
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its not running temp, its the temp while sitting there before you start it has to be above like 45 or 50
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Old 12-16-2013, 03:52 PM   #5
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Inspection/Maintenance (I/M) Complete System Set Procedure
Diagnostic Instructions
• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provide an overview of each diagnostic category.

Description
The purpose of the Inspection/Maintenance (I/M) complete system set procedure is to satisfy the enable criteria necessary to execute all of the I/M readiness diagnostics and complete the drive cycles for those particular diagnostics. When all I/M monitored diagnostic tests are completed, the I/M System Status indicators are set to YES. Perform the Inspection/Maintenance (I/M) Complete System Set Procedure if any I/M System Status indicators are set to NO.

I/M Data List
To determine if the I/M readiness diagnostic tests can be run this ignition cycle, use a scan tool to observe the I/M monitor enabled parameters in the I/M Data List.

Conditions for Meeting a Cold Start
• The ignition voltage between 11-18 volts.
• The barometric pressure (BARO) is more than 75 kPa.
• The start-up engine coolant temperature (ECT) is between 4-30C (39-86F).
• The start-up intake air temperature (IAT) is between 4-30C (39-86F).
• The difference between the IAT and the ECT is less than or equal to 6C (10.8F)
• The ambient air temperature is between 4-30C (39-86F).
• Fuel level is between 15-85 percent
• Without RPO LMG--The fuel alcohol content is less than 15 percent.
• With RPO LMG--The fuel alcohol content is less than 87 percent.

Circuit/System Verification
Review the Inspection/Maintenance (I/M) System Status indicators with a scan tool. All I/M System Status indicators should report YES.

Inspection/Maintenance (I/M) System Set Procedure
Important: Whenever the ignition is turned ON, ignition positive voltage is supplied to the heated oxygen sensor (HO2S) heaters. After verifying the enable criteria, turn OFF the ignition for approximately 5 minutes to allow the sensors to cool before continuing with the test. Once the engine is started, do NOT turn the engine OFF for the remaining portion of the set procedure.
1. Ensure that the vehicle meets the conditions for a cold start listed above.
⇒ If the evaporative emission (EVAP) I/M System Status indicator displays NO, perform the EVAP Service bay test if available.
⇒ If the EVAP Service bay test is NOT available, it may take up to 6 drive cycles, with up to 17 hours between drive cycles, for the EVAP I/M System Status indicator to transition to YES.
⇒ If the O2S Heater System Status indicator displays NO, ensure that the ignition has been turned OFF for at least 10 hours.
2. Set the vehicle parking brake and ensure the vehicle is in park for automatic transmission or neutral for manual transmission.
3. Turn OFF all accessories; HVAC system, other electrical loads, including aftermarket/add-on equipment, etc.
4. Start and idle the engine for at least 2 minutes and until 65C (149F) is achieved.
5. Run the engine for 6.5 minutes within the following conditions:
• MAF parameter between 4-30 g/*
• Engine speed steady between 1000-3000 RPM
6. Return the engine to idle for 1 minute.
7. Apply and hold brake pedal, and shift to Drive for automatic, or apply clutch pedal for manual and operate the vehicle within the following conditions for 2 minutes:
• Depress the accelerator pedal until TP Sensor angle is more than 2 percent.
• MAF signal between 15-30 g/*
• RPM steady between 1200-2000 RPM

Important: Do NOT touch the accelerator pedal during the idle period. A change in TP Sensor angle or an increase in engine speed may invalidate this portion of the test.

8. Release the accelerator pedal and shift the vehicle to Park for automatic, or Neutral and release clutch pedal for manual, and allow the engine to idle for 2 minutes.
9. Quickly depress the accelerator pedal until TP Sensor Angle is more than 8 percent and return to idle, repeat 3 times.
10. Allow engine to idle for at least 2 minutes.
11. Release the parking brake and drive vehicle at 24 km/h (15 mph) or slower for 2 minutes.
12. Continue to drive the vehicle for at least 5.5 miles between 45-112 km/h (28-70 mph) with the vehicle reaching at least 80 km/h (50 mph).
13. Release the accelerator pedal for at least 2 seconds. This will allow the vehicle to enter decel fuel cut-off.
14. Depress the accelerator pedal until the TP Sensor angle is increased 3-20 percent and maintain a safe speed for 1 minute.
15. Safely stop the vehicle, with the engine in drive for automatic or in neutral with the clutch pedal depressed and parking brake applied for manual, idle for 2 minutes.
16. Shift to Park for automatic and apply the parking brake, or neutral and release clutch pedal for manual.

Important: Do NOT disturb the vehicle or turn ON the ignition until told to do so. Disturbing the vehicle may invalidate this portion of the test.

17. Turn OFF the ignition and exit the vehicle. Do NOT disturb the vehicle for 45 minutes.
18. Observe the Inspection/Maintenance (I/M) System Status with a scan tool. All of the I/M System Status indicators should display YES.
⇒ If the EVAP I/M System Status indicator displays NO turn OFF the ignition for 17 hours, ensure that the vehicle meets the conditions for a cold start, and repeat steps 12-18 six more times, or until the EVAP I/M System Status indicator transitions to YES. If the indicator continues to display NO, refer to the Inspection/Maintenance (I/M) System DTC Table to identify the DTCs that did not run. Follow the Conditions for Running the DTC in order to set the EVAP I/M System Status indicator
⇒ If any of the I/M System Status indicators display NO, refer to the Inspection/Maintenance (I/M) System DTC Table for the indicator which did not display YES. The I/M System DTC Table identifies the DTCs associated with each I/M System Status Indicator. Follow the Conditions for Running the DTC in order to set the associated status indicator.
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Old 12-16-2013, 03:59 PM   #6
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all that is very difficult to achieve and why they let you get away with one or two not readies. do they do that in CA as well?
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Old 12-16-2013, 04:41 PM   #7
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Unfortunately no, all IM readiness test need to be complete to pass smog. In Oregon they let it have 2 that are not ready to pass.
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Old 12-16-2013, 04:57 PM   #8
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that sucks. you got 4 months of the year here where it would be impossible to meet the beginning temp.
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Old 12-16-2013, 10:40 PM   #9
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here too. unless you have a heated garage. which i dont

thanks very much for the post, William. im going to take it to the emissions site tomorrow armed with that info and show it to them if they claim it doesn't pass and see what they say.
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Old 12-17-2013, 08:46 PM   #10
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just an update: apprently indiana is a state where one or 2 inc'* are OK. car passed with flying colors, and it actually started under its own power!! maybe all the driving knocked loose whatever was drawing on the battery. lol
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