o2

Anyone know if I can pass NJ inspection with my Catalyst Monitor not set to ready? I was due for inspection in July and my CEL popped right before the end of the month

I just replaced my o2 sensor and cleared my CEL. All other monitors are Ready, I am just having trouble getting this one set.

CoachG

iTrader: (4)

Since the new inspection regs came into effect in May (?), NJ state inspection stations have been dicks about anything out of the ordinary.

Good luck.

benniboi08

iTrader: (35)

what new inspection regulations? I heard the same thing with passing emission nightmares with some changes this year.

revhappy

Does that mean they can still fail you if you have no CEL?

ronaldo9

iTrader: (2)

Correct they wanted to fail me for having an aftermarket cat but luckily I was still able to pass. I had no cel's but their beef was that it was not an OEM cat. I will just go to a private station next time to not deal with the headache.

revhappy

Wow. I've passed for over a decade with a high flow cat. Sounds like a nightmare.

ronaldo9

iTrader: (2)

FYI this was at the South Brunswick Station. I usually go to the one in Edison, NJ. Perhaps there are others more lenient.

revhappy

I've had no problems in Lodi and Wayne. However, I think maybe they are getting stricter on the tests to placate critics over them exempting older cars. Either way, I'm not taking any chances and going to a private mechanic to inspect this year.

lcwjr

iTrader: (4)

I had to deal with this problem on my 2004 Evo, and posted about it to some extent. In short, many Evos will throw a CEL code after the installation of a high flow cat. That's because the rear O2 sensor will detect a flow reading different from the oem expected parameters. If you simply clear the code, the CEL will go off. But, it will eventually come back on. That's because it takes a predetermined number of driven miles for the computer to cycle through the cat test again. What really causes confusion, is that the miles driven must be continuous: the motor cannot be turned off ! If you turn the car off befor the cycle is finished, then it has to start all over again. I have driven for months with no CEl, then it would come on again. I finally figured out that if I drove for about 65 continuous miles, the CEL would return.

The same thing applies to (New Jersey) MV Inspection. Even when you clear the CEL, the inspection station will see a Not Ready code for that test if you have not driven enough continuous miles for the test to complete. In NJ, a Not Ready code is the same as a "Fail". Of course, when the CEL returns, you will still fail.

The best solution if your CEL is related to a high flow cat, is to install an O2 extender between the rear O2 sensor and the cat. (There are numerous posts about this in these forums including some of my own.) Then, clear the code, and drive the necessary continuous miles until the test completes. I have never determined the exact number of miles necessary for the test to complete. For me, it was usually 60 to 80 miles, but other owners have experienced slightly different numbers.

Once you do this correctly with the O2 sensor extender, etc. the problem will not return, and you should pass the NJ inspection. However, I have to agree with other Evo owners that its best to stay away from the State Inspection Stations. Keep in mind that even private inspection facilities use the exact same testing procedures, and a Not Ready or an active CEL code will still not pass.

Hope this helps. Good luck.

gsrboi80

iTrader: (38)

Or simply just flash the ECU to make all needed parameter to pass.

Easier than backpage personals. https://www.evolutionm.net/forums/ec...-mrfred-2.html

4b11slayer

this

NJ_evoIXgsr

iTrader: (15)

I had to laugh at this one!!!

that backpage action is a lot scarier than a nj inspection! Never know when it's a cop.