Not sure about my ultimate and different fuel injectors

[2500avalanche]

I am not sure about something. I have an ultimate (radar style) and I am not sure if I have the stock injectors in it, or can it run with 50lb ones? I am trying to figure it out because I would like to switch or upgrade my fuel injectors

 

[turbodig]

Re: Not sure about my ultimate and different fuel injectors

I am not sure about something. I have an ultimate (radar style) and I am not sure if I have the stock injectors in it, or can it run with 50lb ones? I am trying to figure it out because I would like to switch or upgrade my fuel injectors

It will only run well with the injectors it was made for. Generally you can tell from the sticker on the chip itself.
(There's a number on it)

 

[cloneman315]

Re: Not sure about my ultimate and different fuel injectors

I will tell you if it is a ultimate 50 chip they run like crap,pig pig rich tune.what inj are in the truck?

 

[2500avalanche]

Re: Not sure about my ultimate and different fuel injectors

It will only run well with the injectors it was made for. Generally you can tell from the sticker on the chip itself.
(There's a number on it)

How do I get to the chip to figure it out?

 

[2500avalanche]

Re: Not sure about my ultimate and different fuel injectors

I will tell you if it is a ultimate 50 chip they run like crap,pig pig rich tune.what inj are in the truck?

I am not sure about the injectors. The truck is going through fuel like crazy when I am out in it (I go through a 1/4 tank for about a 40 mile trip).
How can I figure out the injector size and the kind of ultimate I have?

 

[turbodig]

Re: Not sure about my ultimate and different fuel injectors

I am not sure about the injectors. The truck is going through fuel like crazy when I am out in it (I go through a 1/4 tank for about a 40 mile trip).
How can I figure out the injector size and the kind of ultimate I have?

Read the numbers off the injectors... google will generally tell you what they are.

Pull the ECM, there should be a sticker on the chip part itself. Post the numbers here.

 

[2500avalanche]

Re: Not sure about my ultimate and different fuel injectors

Read the numbers off the injectors... google will generally tell you what they are.

Pull the ECM, there should be a sticker on the chip part itself. Post the numbers here.

Ok, thanks! Is the ECM behind the glovebox?

 

[BoostedSUV]

Re: Not sure about my ultimate and different fuel injectors

Ok, thanks! Is the ECM behind the glovebox?

ECM is under the passenger side dash. Remove the cover under the dash on the passenger side and look up. On the memcal for the Ultimate there should be an STG racing sticker with a version written on it. I believe V4 is for the 50#ers. V10 and V11 were the latest stock injector tunes. :tup: