Passing Emissions - Experience Only Please

[Slik726]

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]

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!

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]

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]

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]

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.

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

 

[snowb07]

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]

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.

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

 

[bhuff30]

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]

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.