Hey guys i keep havin my check engine light come on. All i have done so far to it is the predator with the puck stack, TC and VB, exhaust and intake. When i plug my programmer in it says no trouble codes. I can clear the trouble codes and the light goes off but it keeps coming on every now and then. I tried the key thing turning it back and forth but nothing shows up. If anyone has any suggestions i would love some help!!

Thanks

 

What's the code? Members here will need that in order to help you or diagnose a problem. Also fill out your signature so that everyone will know what year model is in question.

On a side note...... you'll have some fun trying to read the code with the Predator. I could always clear them but never read them. I always used the key sequence to read them and the Predator to clear them.

 

the thing is the key thing does not work for me. i do not know what to do to find out what the code is

 

Your truck is an '07 5.9L, correct?

It should work just fine for you. I've checked the codes on several different model year trucks; including a buddy's '07.

"Key on, key off, key on, key off, key on and leave it." <------ I'm pretty sure that is the exact sequence. Sometimes it takes me several tries to finally get it. Let us know if it works.

 

Yup. That's the correct way to check the codes. Your other option is to get a code reader or go to AutoZone where they will read them for you for free. You most likely are getting a Low boost code or an overboost code. If it's the low boost code you will know it because the truck will go into limp mode.
It's probably an overboost code since you don't show a boost fooler in your mod list. Neither the Predator nor the puck do boost fooling... What kind of boost numbers are you making.
You know it's really great how easily we can get the extra power out of these trucks but everybody that does this should really invest in some guages. It sure helps diagnose problems.....

 

The boost seems to be right around 38 or so when i get on it. I will try the key sequence again but when the light comes on it does seem like it loses a little bit of power and its a little bit more sluggish and when i clear it then it runs like it always had.