tricking the state with dsmlink...

[xdsmlaser93x]

Has anyone figured out how to set the emissions readiness monitors to always good using DSMlink yet?

 

[SOADweskey]

You can do it with the palm software. I don't think there is a way to do it with the normal software on a laptop.

 

[mephist0]

how?

 

[Rob10_99]

Yeah you can, its in one of the options, uhh.... diagnostic codes, I know you can at least reset them on it.

 

[xdsmlaser93x]

i know you can clear dtc's, but is there infact a way to pass the plug-in emmisions portion of the obd2 emissions testing by making all of the or at least 4 out of 5 needed to pass (ny) set to always passed?

 

[The_EE]

I had no problems getting my car smogged in California and they are the strictest state when it comes to testing.

Passed everything with flying colors with 272's and the original cat in the car! hehe.

 

[1992awdlaser]

I'm pretty sure (not positive) when you ignore a dtc wih any software for any car the readiness monitor gets ignored(shows n/a). That means the emisssion test won't look at it. That is how my friends mustang passed NY state inspection with no emission equipment. I'm pretty sure the same thing will happen if you ignore it with dsmlink. I will try to find somebody local here in NC wih a 2g so I can confirm this with my scanner.

 

[kingjust]

I'm prety sure (not positive) when you ignore a dtc wih any software for any car the readiness monitor gets ignored(shows n/a). That means the emisssion test won't look a it. That is how my friends mustang passed NY state inspection with no emission equipment. I'm pretty sure the same thing will happen if you ignore it with dsmlink. I will try to fid somebody local here in NC wih a 2g so I can confirm this with my scanner.

My man here is correct. Doing the OBD2 or 1 for the older models will only look for "codes" or better known CEL's. The only thing that you have to be aware of is that they have to physically check for a cat. Besides that, I passed mine in VA. So turn off your Emissions Codes, make sure you have a CAT, you "should" be good. Remember 99% of CEL's are emmission related.

KJ

 

[daren_p]

You can do it with the palm software. I don't think there is a way to do it with the normal software on a laptop.

As far as I know, this is the correct answer. We don't have readiness testing here but from what I've heard, according to the people that do, just turning the CEL off will not pass the car.

 

[1992awdlaser]

As far as I know, this is the correct answer. We don't have readiness testing here but from what I've heard, according to the people that do, just turning the CEL off will not pass the car.

It won't pass when all you do is turn it off. Turning it off resets all the monitors to not ready. That will make it fail. That is true for any obd2 vehicle on the road.

If you ignore them though on this screen, http://www.dsmlink.com/images/screenshots/dtcdialog2g.gif , by using the check boxes the monitor for that should read n/a which the emission equipment will then ignore it.

 

[xdsmlaser93x]

i e-mailed someone at ecm tuners and asked them if i could pass emissions monitors with dsm link, they said no they cant directly supply you with a way to fool emissions but there are people out there running versions of there software that they have changed to allow you to do such a thing.

 

[crimsondragon]

What about the sniffer test? NJ tests for NoX which is what the EGR is designed to lower. Is there a way to tune using DSMLink to lower NoX?

 

[Rob10_99]

Richen it slightly just above idle to mid throttle, that should take care of it, do they have an AWD dyno there? PITA if they have it on the rollers.
Have you failed yet?

 

[daren_p]

What about the sniffer test? NJ tests for NoX which is what the EGR is designed to lower. Is there a way to tune using DSMLink to lower NoX?

EGR helps to reduce combustion temps, which in turn should lower your NOX. By reducing your timing in the rpm area that they test the vehicle at, you should be able to lower your NOX.

 

[daren_p]

Richen it slightly just above idle to mid throttle, that should take care of it, do they have an AWD dyno there? PITA if they have it on the rollers.
Have you failed yet?

Good idea as well to lower combustion temps but won't work so well with DSMLink. If you add fuel, the factory O2 sensor will read this & compensate injector pulses to increase your air/fuel ratio back to the ideal ~14.7 to 1. The only way to prevent this is to add so much fuel that your fuel trims are no longer able to compensate. Though this wouldn't be a good idea as you would just be creating other issues.

 

[Rob10_99]

Oh my bad, I forgot link doesnt have "real" fuel maps. Wouldn't it work if you forced it to open loop before the test? haha

 

[crimsondragon]

Richen it slightly just above idle to mid throttle, that should take care of it, do they have an AWD dyno there? PITA if they have it on the rollers.
Have you failed yet?

I don't believe they dyno it. I never seen them do it. They just sniff it at idle.

Good idea as well to lower combustion temps but won't work so well with DSMLink. If you add fuel, the factory O2 sensor will read this & compensate injector pulses to increase your air/fuel ratio back to the ideal ~14.7 to 1. The only way to prevent this is to add so much fuel that your fuel trims are no longer able to compensate. Though this wouldn't be a good idea as you would just be creating other issues.

What about the MAF? What if we adjusted it to read more air coming then it really is and thus the ECU will dump more fuel?

 

[daren_p]

I don't believe they dyno it. I never seen them do it. They just sniff it at idle.



What about the MAF? What if we adjusted it to read more air coming then it really is and thus the ECU will dump more fuel?

If they don't put your car on a dyno, then they don't have any way to test for NOX as the car has to be under load to perform this test. Thats why awd's get away without having to test for NOX since as far as I know (well unless it pretty recent) they have no awd dyno's at the test facilities. Some states have the equipment to do the loaded test, while other do not......


No adjusting the MAF won't do anything, you are still in closed loop when they perform this test so adding more airflow will initially inturn add more fuel but the O2 sensor will again sense this & your fuel trims will bring it back where it should be.