Base 2006 coupe 6sp and I installed Kooks LT with cats and Corsa sport cat back exhaust. CEL came on throwing P0420 and P0430 fault codes. Got new Diablosport Predator. Do I clear the CEL and then istall the tune or do I install the tune and then clear the CEL?
This is getting frustrating

 

aaaah, just noticed you have a 2006 vette, not an 08... for some reason before, I was thinking you had an 08 vette...

there should be a header tune in the predator for your 06 vette... that tune will disable the codes for ya.

after installing the tune, drive for 3-4 days before going to your emissions testing though, so all of the emissions modules complete their "readiness tests" and the status is "completed", otherwise if you don't, you will fail.

whenever you flash a tune, all of the readiness tests get reset to the "not yet run" or "not completed" status. so, you need to drive for a few days to let all the different tests be run and completed. then you can go to emissions and be ok.

 

Well Monte you did it again. You have to be the Gerue of tunning.
Everything is perfect. No CEL no codes. Taking it to inspection in a few days.
If your every in Houston I owe you the finest dinner in the city.
You can PM me for my home telephone and othe info.

Thanks again
Frank

 

suuh-weeet!

good to hear man... you're all set to go now...

 

 

did your predator originally have an 8rXX revision on it, and you updated it to a new 9rXX revision??

if so, then yup, the header tune is gone now....

if your predator came with an 8rxx revision on it when you bought it, you can revert back to an older revision now if you want. but, if it came with a 9rXX revision on it when you bought it, you can not go back to an 8rxx revision. so hopefully, yours originally had an 8rxx revision on it...

I know they added the header tunes starting with revision 8r07, and not sure where it got cut off, probably in the new 9rXX revisions... so, here's links to the previous 8rXX revisions you can try...

http://diablosport.com/downloads/pre...7194-8r10.crom

http://diablosport.com/downloads/pre...7194-8r09.crom

http://diablosport.com/downloads/pre...7194-8r07.crom

 

where'd your post go Mark?? I answered it and you removed it LOL

 

Excellent. I believe that mine had an 8xxx revision. I will try your suggestion. Thank you

 

Actually, it takes many days or even months clearing out the
"Evaporative System" incomplete after flashing a tune. Though many states do allow one incomplete to pass the testing.

 

nah, it doesn't... takes only about 5 driving cycles...

and hell, you could to 5 or 6 driving cycles in a few hours in an afternoon if ya wanted to...

http://obdii.com/drivecycle.html

 

I still disagree. Me and many others have found it takes a LONG time.
Here is GM's official description of how to run the tests. If you want to do those exacting parameter driving cycles , more power to you. The easy way is to drive as usual and dont flash your tune for awhile-though you can scan the DTC's.

________________________________________ ____________________


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 4-30°C (39-86°F).
• The start-up intake air temperature (IAT) is between 4-30°C (39-86°F).
• The difference between the IAT and the ECT is less than or equal to 6°C (10.8°F)
• The ambient air temperature is between 4-30°C (39-86°F).
• Fuel level is between 15-85 percent


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 EVAP I/M System Status indicator displays NO, perform the EVAP Service bay test if applicable.
⇒ If the EVAP Service bay test is NOT available, ensure that 17 hours has elapsed since the last cold start.
⇒ The EVAP I/M System Status indicator requires several drive and 17 hour key OFF cycles to complete before the indicator will transition.
⇒ 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 2 minutes, until 65°C (149°F) is achieved.
5. Run the engine for 6.5 minutes within the following conditions:
• MAF parameter between 4-30 g/s
• 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.
• Mass air flow (MAF) signal between 15-30 g/s
• RPM steady between 1200-2000 RPM
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. Close the hood, release the parking brake and drive vehicle at 24 km/h (15 mph) or slower for 2 minutes.

Caution: Refer to Road Test Caution in the Preface section.
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 13-16 three 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.

 

So, do the header tune disable the rear o2?

 

i have a 2005 corvette c6.
installed headers
x--pipe with no cats
Borla perfomace exhaust
air intake
I am trying to get it to pass emmisons test. is there anything i can do for a tune myself? any help would be great i tried defusers and that failed!!
Steve from vermont

 

Which tests aren't completed that are causing it to not pass?

 

heater circiut, cat and then one other that i do not remember the paperwork is in the car at home

 

Heater circuit should not be showing up if the sensors are good and everything is installed correctly. Check for codes, etc.

Worst case find someone local with HPTuners to disable those codes and it'll pass no problem. I usually charge $100 + licensing costs to do stuff like this

 

I see you are in Raleigh. I wish I was still in Fayetteville. I'd drive up and let you clear the codes on mine.

 

I do a lot of tuning for a shop down in Fayetteville. Force-fed performance