It is running the stock ECU. I have not chaged anything about the header. I do have a Bonez Superflo Cat system in it but I was assured that it would pass with this. Maybe they were wrong. I have passed with high flow cats before.



I had vacuumleaks fixed in between the first and second inspection. It did better after the vacuum leaks were fixed.



Are there easy ways to check the condition of the sensors you have mentioned?

well if the vacuum leaks are related to the systems to help emissions control (like a vacuum line that goes to the ACV that is needed to power some vacuum motor...) then repairing it would help. A simple vacuum leak will introduce more air into the engine than is being metered, which would usually cause a lean condition (but **** with idle air control probably)



regarding checking the sensors, yes it's easy, you just need a multimeter, digital or analog will work. The shop manual (and likely haynes) will have the valid ranges for the resistance the sensors should have.



The O2 sensor is just a voltage check.



the bonez high flow cat should be fine, just verify your split air pipe is connected, it's responsible for bringing the fresh air provided by the air pump into the cat.

Well at least I have the equipment needed. The split air pipe is connected, I know that for sure.



I will check the sensors tonight or tomorrow.



Thanks for the advice, I will let you know what happens.

Just to update on my situation and hopefully it may help others. I checked absolutely everything on this car and everything that had to do with the emissions was functioning properly. It was drving me crazy.



The only thing that was different was the Bonez Superflo Cat system but I had been assured by a number of people that it would pass inspection even with the high flow cats.



I could not figure out what was wrong so I decided to put a set of stock cats back on the car. Guess what.... it passed with flying colors. The gases that are checked were barely detectable. It seems that in Texas the Bonez Superflo cats won't pass the emissions testing.

was the bonez cat new or did you get it used from somebody?

The cats were brand new out of the box. Nice and silver and all.

wierd you should let the company you bought it from know, thats not supposed to be the case.

I am going to e-mail them right now. I still think there may be something else going on here because the shop said it passed with flying colors but I actually saw the results. It did not pass by much. But at least now I have some time to work on things and not worry about getting a ticket.



I don't know why I am so paranoid of getting a ticket. https://www.nopistons.com/forums/pub..._DIR#>/sad.png

so at this point the air control valve is working?



mike

To be honest, I am not sure right now. The shop said they fixed a bunch of stuff including replacing 2 solenoids (Relief valve and EGR solenoids). I haven't had a chance to see if the ACV was one of the things they worked on. I told them I did not think it was working correctly because it was blowing even at idle instead of just above 1500 RPM.



I am going to look into that this weekend. I will also check the EGR valve itself and the TPS. I just have to find the time.



But for the time being it is off to the paint and body shop.