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Passing Emissions - Experience Only Please

  • Thread starter Thread starter Slik726
  • Start date Start date Apr 24, 2008

Slik726

New Member
Apr 17, 2008
11
0
0
Jacksonville, FL
Apr 24, 2008
#1
  • Apr 24, 2008
  • #1
All;

I own the car below and have the availability to tune any parameter necessary. I currently have an O\R MAC system on the car and would like to pass emissions in IL. I went the other day but got rejected due to computer "readiness." I had deleted bank 1 & 2 catalytic efficiency codes right before and did not get a full driving cycle on the car. Does anyone know if there is a way to tweak a car to be read as "ready." They perform "ready" checks based on the reject sheet I received on the 02s, 02 heating, cat, cat efficiency, egr, cat heating (NA for mustangs) etc.. I can turn the rear 02s off, but am worried that the ready check would come back false on the sensors. The way I see it as well is with the rear 02s on, i will get the efficiency code no matter what. Any experience in the house?

Lastly, is there a difference between the way codes are stored? I was able to read the codes with my X3 but the cat efficiency codes did not throw a CEL. But they say they check for it... So would they have seen it?

Would MIL eliminators take care of my problem? I have not read up on them yet and how they interface.

If there are any Ford engineers or emissions engineers that would not mind PM'ing me I would appreciate it. I am a development engineer but do not specialize in emissions or gas engines... Thanks!
 

the98stang

Active Member
Aug 12, 2005
2,408
0
47
Clovis, CA
Apr 25, 2008
#2
  • Apr 25, 2008
  • #2
Slik726 said:
All;

I own the car below and have the availability to tune any parameter necessary. I currently have an O\R MAC system on the car and would like to pass emissions in IL. I went the other day but got rejected due to computer "readiness." I had deleted bank 1 & 2 catalytic efficiency codes right before and did not get a full driving cycle on the car. Does anyone know if there is a way to tweak a car to be read as "ready." They perform "ready" checks based on the reject sheet I received on the 02s, 02 heating, cat, cat efficiency, egr, cat heating (NA for mustangs) etc.. I can turn the rear 02s off, but am worried that the ready check would come back false on the sensors. The way I see it as well is with the rear 02s on, i will get the efficiency code no matter what. Any experience in the house?

Lastly, is there a difference between the way codes are stored? I was able to read the codes with my X3 but the cat efficiency codes did not throw a CEL. But they say they check for it... So would they have seen it?

Would MIL eliminators take care of my problem? I have not read up on them yet and how they interface.

If there are any Ford engineers or emissions engineers that would not mind PM'ing me I would appreciate it. I am a development engineer but do not specialize in emissions or gas engines... Thanks!
Click to expand...

The codes can be read by the emissions shop even if the CEL isn't showing. Sounds like you need catalytic converters to pass...
 

tank_567

Active Member
Mar 19, 2007
731
26
29
Raleigh, Nc
Apr 25, 2008
#3
  • Apr 25, 2008
  • #3
yes you can pass IF you use a tuner. I turned off my readiness code with my Diablo Predator and it passed w/o cats installed. Just make sure that no one looks for them
 

blkhorse

Founding Member
Oct 30, 1999
345
1
18
Apr 25, 2008
#4
  • Apr 25, 2008
  • #4
you cannot pass with the rear o2's off. not sure but with them on and with mil's it should work. you need to complete a drive cycle also
http://www.obdii.com/drivecycleford.html
need to get rid of the p1000 code(drive cycle not complete). try the mil's or put cats back on. got mine to pass the obdii yesterday with the mods in my sig,but I have cats. I did have an issue because the egr was shut off and would not set that flag and eliminate the P1000,turned it back on and it passed no problem.
 

Notchbck93

New Member
Dec 9, 2003
422
1
0
IL
Apr 25, 2008
#5
  • Apr 25, 2008
  • #5
blkhorse said:
you cannot pass with the rear o2's off. not sure but with them on and with mil's it should work. you need to complete a drive cycle also
http://www.obdii.com/drivecycleford.html
need to get rid of the p1000 code(drive cycle not complete). try the mil's or put cats back on. got mine to pass the obdii yesterday with the mods in my sig,but I have cats. I did have an issue because the egr was shut off and would not set that flag and eliminate the P1000,turned it back on and it passed no problem.
Click to expand...


Ahh the truth; it's nice to read once in a while. I concur that with MIL's you will complete the rediness test.
 
S

snowb07

New Member
Jul 22, 2003
235
0
0
soon to be CT
Apr 25, 2008
#6
  • Apr 25, 2008
  • #6
Here in CT I passed with the ODBII test with no cats or EGR. I went somewhere that does a "quick" visual check. Both systems are turned off in my tune and on the score card the systems have a N/A after them.
 

Notchbck93

New Member
Dec 9, 2003
422
1
0
IL
Apr 25, 2008
#7
  • Apr 25, 2008
  • #7
snowb07 said:
Here in CT I passed with the ODBII test with no cats or EGR. I went somewhere that does a "quick" visual check. Both systems are turned off in my tune and on the score card the systems have a N/A after them.
Click to expand...


Being IL P1&2 certified, they are sticklers to ensure all system readiness test are complete.
 

bhuff30

Founding Member
Dec 11, 2001
6,037
35
129
Olathe KS
Apr 25, 2008
#8
  • Apr 25, 2008
  • #8
I'm certainly not as knowledgable as everyone else here...

I have a code scanner program for the laptop (no tuning abilities, only for monitoring the OBD-II and pulling codes). I have home-made MILs and the offroad-H; when I was messing around with the software, it showed the the rear O2 sensors as being turned off. The car certainly doesn't have a tune so that means the computer turned the rear o2s off automatically with the MILs installed.
 

Slik726

New Member
Apr 17, 2008
11
0
0
Jacksonville, FL
Apr 25, 2008
#9
  • Apr 25, 2008
  • #9
Thanks for all the advice. I thought the previous owner of the car said he had MIL eliminators installed but it looked to me like there were only harness extenders on the car. I will research them further and let everyone know.
 
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