Just installed a straight pipe with no muffler or anything and I don't see a check engine light. I suppose since the check engine light didn't come on I really don't need to install the fingerstick?

What kind of truck do you own?
Does it have a cat?

it's a 05 3500 4x4 dullie
http://www.dieselplace.com/forum/showthread.php?t=30614

I removed the cat as well, just straight pipe and no muffler.

If it doesn't code, consider yourself lucky. Most LLY's do.

The only reason you need to run a Finger Stick is:

Insufficient backpressure to run the EGR.
You've blocked the EGR.

If you block it, you'll certainly need the stick.

thank you, I already have the stick with me so if it does come on I will install it.

Well, even though you don't have a check engine light you still will have code.

i just put on a 4" turbo back w/ no cat and i didnt get the light either, but like max power said we'll prob. still have a code.

The light will only come on with certain emissions packages (North East and CA).

When i first got my Truck i removed the cat and added 4 inch cut out as close as i can to the front. I used to drive it alot with the cut out open. Never threw a code.

Then i Put my 5 Inch.. and then the codes came within the first mile that i drove it from the Muffler shop. I guess the five inch all the way to the back with muffler flows more then stock no cat and a cutout.

put a scanner on it and see if you have a code. most likely, the code is their and your truck has federal emissions. only the northeast and cali will set the SES light on for you.

where do i get a scanner to see about the code?

Will leaving it that way hurt anything?

Most parts store have certain scanners for sale or you can buy a Predator, it'll read codes too.

Here's my question: I have 5" exhaust, no cat, blocked egr, fingerstick, no light (Federal emissions) but sometimes I have the code, sometimes I don't? Why? About 80% of the time I have the code, but the rest of the time I don't - what gives?

maybe a texas member has a scanner i can borrow......

The codes do not affect performance that I can tell. All my best runs have been with the CEL lit.

Most parts store have certain scanners for sale or you can buy a Predator, it'll read codes too.

Here's my question: I have 5" exhaust, no cat, blocked egr, fingerstick, no light (Federal emissions) but sometimes I have the code, sometimes I don't? Why? About 80% of the time I have the code, but the rest of the time I don't - what gives?If you have the fingerstick i dont think you should even be able to get the code, correct me if im wrong, or does it just not set off the light?

What states are considered the Northeast? I ask because I'm in NJ and I have the EGR blocked, Banks Monster exhaust from CAT back and don't have the finger stick installed (have it, but been lazy installing it). I have the Predator and check for codes often and never have thrown a code. Does it matter that I had the truck built as far far as Fed emissions are concerned? Technically, Jersey is in the Mid-Atlantic belt.

If you have the fingerstick i dont think you should even be able to get the code, correct me if im wrong, or does it just not set off the light?
That's exactly what I'm trying to figure out. The fingerstick is installed correctly and soldiered good but I still set the codes 401 and 404 most of the time - no SES light.

Return the stick to me for a refund or exchange. No questions asked.

My 05 LLY is a Wisconsin truck and has Cali emmissions junk WTF??? I ordered it so its not like they didn't know where it was going, build date of 12/18/04. I keep forgetting to look as I order one for work the same time, 2500HD and it was bulit a week sooner, not sure what emissions are on it, Oil change this week so I'll look. If I set 401/404 the SES light will come on after the 2nd time, the 0299 is the PIA for me, firt tow next week with the blocker plate and stick, prior I just had the stick. Time will tell. I have not set the 1093 since I installed my Supertank, never put more than 45 galons in though.

The light will only come on with certain emissions packages (North East and CA).
So does that mean that if you don't have a north east or CA truck you don't need the finger stick?

nope, that doesn't. just because the light doesn't come on, doesn't mean that codes aren't present.

nope, that doesn't. just because the light doesn't come on, doesn't mean that codes aren't present.
Right on!

when i put my EGR blocker plate on, i didn't get an SES light, but the codes were stored and you couldnt see them without the scan tool.
I installed the FingerStick and cleared the codes and it no longer throws the codes. Thanks Fingers!

by the way, if you don't know what a Finger Stick is, use the search function and you will have all the info you could want and then some.

This might sound like a dumb question but what is a fingerstick?

Look here (http://dieselplace.com/forum/showthread.php?t=21428) for general info. Then do a search for Finger Stick and start reading.