problems....EGR delete?? Questions

Reply Subscribe

Thread Tools

Search this Thread

Jul 15, 2010 | 03:44 PM

#16

tex25025

Post Fiend

Joined: Oct 2005

Posts: 10,626

Likes: 7

From: Plano TX and Brentwood TN

Quote:

Originally Posted by Z06MAN

Going to check the fuel pressure next, what should it be? Do I need to pick up a gauge for this or will a program like Auto Enginuity or a programmer show the pressure?

That'll have to be done with a gauge. AE pulls from the PIDs in the computer and there isn't one for Fuel PSI on ours.

Jul 15, 2010 | 08:42 PM

#17

Z06MAN

Thread Starter

Junior User

Joined: Jul 2010

Posts: 75

Likes: 0

What kind of pressure should I be running?

Jul 15, 2010 | 09:14 PM

#18

tex25025

Post Fiend

Joined: Oct 2005

Posts: 10,626

Likes: 7

From: Plano TX and Brentwood TN

You don't want to see less the 45 PSI. Mine is running at 60 PSI, but stock it should be around 52-53 PSI I do believe. I never had the gauge on my truck when it was putting out stock pressure, so I'm a little fuzzy on where they normally are, however, that 45 PSI is a threshold. I wouldn't even like to see below that even if it's only at WOT.

Jul 16, 2010 | 11:17 AM

#19

Z06MAN

Thread Starter

Junior User

Joined: Jul 2010

Posts: 75

Likes: 0

Okay I'll pick up a gauge and check it. Where is the best place to check it at? Or I guess where is the test fitting located?

Jul 16, 2010 | 11:19 AM

#20

Z06MAN

Thread Starter

Junior User

Joined: Jul 2010

Posts: 75

Likes: 0

Where is the best place to buy a test gauge?

Jul 27, 2010 | 08:49 PM

#21

Z06MAN

Thread Starter

Junior User

Joined: Jul 2010

Posts: 75

Likes: 0

okay finally got time to check the fuel pressure. I'm running between 58-62 during normal driving and it drops to 52-53 under full throttle.

I timed it from a dead stop today, punched it at a stoplight and it took 3.6 seconds before it started to build boost. Is that normal? That seems really slow.

Jul 27, 2010 | 10:46 PM

#22

tex25025

Post Fiend

Joined: Oct 2005

Posts: 10,626

Likes: 7

From: Plano TX and Brentwood TN

Quote:

Originally Posted by Z06MAN

I timed it from a dead stop today, punched it at a stoplight and it took 3.6 seconds before it started to build boost. Is that normal? That seems really slow.

You will have lag if you just stomp on it from a dead stop. Now I've never timed it when I had the stock turbo, so I don't know if that exact time is normal(I don't see it being unreasonable though, alot of variables that will play into how quickly your truck built boost), but I can tell you it's far better to ease in the throttle then it is to just try to build it all at once from a dead stop.

Jul 27, 2010 | 10:58 PM

#23

jetact

Elder User

Joined: Dec 2004

Posts: 944

Likes: 0

From: Happy Valley, Oregon

Quote:

Originally Posted by tex25025

Well, since you are wanting to disable the EGR sensor, you'll need to get a custom tuner. No ifs ands or buts about it. SCT will do fine by you if you are on a budget. Get the X3 though. You can have them just do 1 tune for you and that would be to disable the EGR sensor. They don't have to do anything else. The joys of custom tuning.

I wouldn't do a tuner for fuel economy. You might see gains, you might not, you might even see losses. It'll take a lot of miles(and I do mean a lot) to break even on doing a tuner for fuel economy reasons.

Tex,

You say the SCT if on a budget. What if I threw the budget out the window. What tuner would you suggest if I also needed an EGR delete written in to a tune.