Thanks again Kevin for sending me that EGR tube no charge,my sticker was due Nov10th.

You definitely got me out of a jam.

The EGR tube I purchased from a guy in Colorado got here this week.

I recieved the part from you that week and Failed my first test on NOX only.

I dumped the computer,changed the fuel filter and drove it around for a few days.

I retested on the 25th and passed.

At least I didn't get busted for the expired tags. LOL

Your replacement EGR Tube is in the mail.

BTW a big thumbs down to GM for their company wide back order and out of stock position on EGR Tubes for 93-97 LT1 cars

 

Emissions, whats emissions?????

 

Congrats on getting by emissions Tom.I still need to deal with that in the spring as I failed just before I put the car in storage for the winter.My test was kinda wierd I passed the curb idle but my other numbers were

hc was 217 and the limit was 65
co was .75 and the limit was .36
no was 572 and the limit was 484

any suggestions?

 

Dave how new are the cats?

High HC is too much unburned fuel,high NOX is too hot combustion and can be caused by a lean fuel condion,non functioning EGR

I posted this last month:

http://web.camaross.com/forums/showt...hreadid=194874

There is a link inside about NOX.

 

The cat is 2 years old but my last cat I had on the car blew all the beads out of it after only one year.I guess since I take the car to the track almost every weekend it is kinda hard on the cat.

It is running a little rich if anything the A/F ratio on the wideband was 12.5:1

 

Dave did you get to look at the link in the other thread?

Do a new Cat and put some new O2's in and you should get through

You might want to pull off the EGR valve and clean it up with some brake cleaner.