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Un-Programming / Re-setting PCM for NC inspections

  • Thread starter Thread starter 2002GreyGT
  • Start date Start date Oct 16, 2006
2

2002GreyGT

Member
Jun 10, 2003
481
0
16
Raleigh, NC
Oct 16, 2006
#1
  • Oct 16, 2006
  • #1
All,

So I know I need to un-program my car before inspection, but a friend told me that I need to unprogram it and then drive a bunch of miles to reset the "Drive Cycle" code.

Is this true, or do I just need to unprogram it that day?

Thanks

~K
 

jstreet0204

Active Member
Jun 26, 2003
939
0
36
Winston Salem, NC
Oct 16, 2006
#2
  • Oct 16, 2006
  • #2
Why do you think you need to un-program it. I pass everytime "because" of my tune. If I took it off it would fail. The tune itself should not cause it to fail.
 
R

Roger_4.6_96

Founding Member
Jul 16, 2002
1,209
0
0
Reno,NV
Oct 16, 2006
#3
  • Oct 16, 2006
  • #3
Your friend is right about driving around to reset the computer.

How is your car tuned to make you wanna reset it to stock ?
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Oct 16, 2006
#4
  • Oct 16, 2006
  • #4
Why would removing the tune be required to pass emissions?
 

BooWFO

New Member
May 10, 2005
991
0
0
Louisville, KY
Oct 16, 2006
#5
  • Oct 16, 2006
  • #5
Not up to date on NC inspections but I know some areas just plug into the OBD II port and scan the computer. A non - stock configuration can be grounds for a failure.
IMO that sucks most people that go through the trouble of getting their car tuned keep it in tip top condition. Which should lead to less emissions problems.
 
2

2002GreyGT

Member
Jun 10, 2003
481
0
16
Raleigh, NC
Oct 16, 2006
#6
  • Oct 16, 2006
  • #6
My car is tuned with a predator tune. How they do inspections here in NC, is by plugging into the ODBII port and scanning the computer.

Roger_4.6_96 - Do you know how far you have to drive after re-setting back to factory?

~K
 

jstreet0204

Active Member
Jun 26, 2003
939
0
36
Winston Salem, NC
Oct 16, 2006
#7
  • Oct 16, 2006
  • #7
BooWFO said:
Not up to date on NC inspections but I know some areas just plug into the OBD II port and scan the computer. A non - stock configuration can be grounds for a failure.
IMO that sucks most people that go through the trouble of getting their car tuned keep it in tip top condition. Which should lead to less emissions problems.
Click to expand...

Not true. They have no way of knowing what the stock configuration is. They do the odbii tests here. It only checks the odbii codes. I pass every year with a modified tune. As does anyone who has a carb certified supercharger since the tune HAS to be modified.
 

BooWFO

New Member
May 10, 2005
991
0
0
Louisville, KY
Oct 16, 2006
#8
  • Oct 16, 2006
  • #8
jstreet0204 said:
Not true. They have no way of knowing what the stock configuration is. They do the odbii tests here. It only checks the odbii codes. I pass every year with a modified tune. As does anyone who has a carb certified supercharger since the tune HAS to be modified.
Click to expand...
Like I said I'm not up on NC law.

But I know for a fact the emissions test here FAILED you for a non stock tune. Hence why so many people started getting handhelds. Heck could be something as simple as having the rear o2's turned off in the tune, which is a fairly common thing.
Heck for that matter I had a bike fail the emissions testing here due to having an aftermarket muffler on it. Of course the fact that they held the RPM's at 6k while testing it didn't help either.
 

jstreet0204

Active Member
Jun 26, 2003
939
0
36
Winston Salem, NC
Oct 16, 2006
#9
  • Oct 16, 2006
  • #9
BooWFO said:
Like I said I'm not up on NC law.

But I know for a fact the emissions test here FAILED you for a non stock tune. Hence why so many people started getting handhelds. Heck could be something as simple as having the rear o2's turned off in the tune, which is a fairly common thing.
Heck for that matter I had a bike fail the emissions testing here due to having an aftermarket muffler on it. Of course the fact that they held the RPM's at 6k while testing it didn't help either.
Click to expand...

Sorry, but I do not belive that. How does anyone with a supercharger in your state pass emmesions, since the tune HAS to be modified. They may have failed for another reason, but not for simply modifying the tune.
 

BooWFO

New Member
May 10, 2005
991
0
0
Louisville, KY
Oct 16, 2006
#10
  • Oct 16, 2006
  • #10
jstreet0204 said:
Sorry, but I do not belive that. How does anyone with a supercharger in your state pass emmesions, since the tune HAS to be modified. They may have failed for another reason, but not for simply modifying the tune.
Click to expand...
wasn't statewide was a county thing. Some people registered car in other counties, and some got real used to remove items once a year for testing. It was the sux.
 
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