OBD II Emissions Test Fail

[Ibanezz]

HP tuners is a viable option but unless you know someone with the set up, its pretty damn costly

[ssms5411]

Re: OBD II Emissions Test Fail

HP tuners is a viable option but unless you know someone with the set up, its pretty damn costly

It would be cheaper than taking it to the dealer and having them mess with it.

[bigbrian442]

Re: OBD II Emissions Test Fail

HPT will do nothing to help him. They are OBD II readiness tests not trouble codes. He will have to drive it for them to complete.

Secondary air system is the air pump.

[LETZRIDE]

Re: OBD II Emissions Test Fail

HPT will do nothing to help him. They are OBD II readiness tests not trouble codes. He will have to drive it for them to complete.

Secondary air system is the air pump.

no, you can use hp tuners to set readiness tests. I've done it, what you have to remember though is that you need to sell ALL relevant DTC's to #3 No error reported, not just the ones that show "not ready". The reason for this is that once you flash the pcm, any DTC you didn't change will show not ready until you either change the DTC to no error reported or do the drive cycle to complete that test.

Also, you don't have to have the sensor "hooked up" to show ready. My egr is deleted and I can have my car show ready for the tests. This is why I was laughing when they changed emissions over here to the OBD II pluggin...except they did it from 98+ so I got screwed because hp tuners can pass any OBD II tested GM car

[LETZRIDE]

Re: OBD II Emissions Test Fail

incase I've lost some of you in my explanation, maybe this will help some, this is a quick scan I did earlier of my car showing the sensors as unready:




Then Here is a picture of everything ready...note that my EGR system is non existent, totally unplugged when I did this and it still shows as ready.





I wish I could add some more pictures in here, but the site can't resize them.

[96RS Alex]

Re: OBD II Emissions Test Fail

This is facinating and helpful for me to understand what's involved in HP Tuners. Again, thanks very helpful! :tup:

I have been very busy at work and still have yet to perform some drive cycles or look into HPT. Looking forward to a sunny weekend here to drive the Camaro. I have the V6 and the Z28 to drive in the meantime.

I did find some extra info about HC, NOX & CO just to add to this thread:

http://www.salemboysauto.com/original-faqs/faq-20.htm