Jeff e.

No insight yet. I ran the truck today and wow. 1/8 tank to go 20 miles. At 70mph I'm at 1000 degrees egt and at idle it wont stop smoking. Black smoke at 400 degrees egt. 180 engine temp. 15psi fuel pressure at 70mph. Wtf. New ip and lp and over flow banjo. Before the lp failed I can go 450 500 miles on a tank. Anybody have a clue?

So it's a program I need to buy or the whole kit for 3g? What about issues with tipm?

How do I read codes with out the obd2 port? Super new to all this. Iv never hade a electronic issue like this.

Ok. So 3 code readers and still can't communicate with ecm. Pulled and cleaned all pig tails. Is this a sign of bad ecm? All my gauges work fine. Wts fuel rpm all of it. It has 289000 miles on it. My obd2 port wires are all in the right spot cleaned and lubed with dielectric grease. Same with ecm pig tail. Can't pull any codes still. Scan tool says there aren't any. So...

Yes that's what scares me. Why els would the chip not read the ecm?

I have done that already. I keep playing with the obd2 port hoping it will fix it. Called them a wile ago and they were a joke. Thank you for all the advise. This is my third cummins. So I'm stumped as all get out. What about flash the ecm? Can I get away with that?if I can't connect to ecm then can I pull it and have them flash it?I'll try a buddies code reader. I drive trucks so my schedule is tuff to work with. Thanks again guys

Yes. I bought the truck and it ran perfectly. No issue at all no codes. Now it runs high egt at Cruze throws a code and drinks fuel like mad. I can't read the code with my super chip It will read and say no dtc. But it wont let me go back to stock. It says can't communicate with ecm.

Yes fuel system is all stock. Truck ran fine before VP failed. So I did the normal new ip New lP new filter.I was getting 30+psi boost. 13psi is wot under load at 80mph. It's a 3500. Weighs 9600 with my tools in it. Haven't pulled a trailer yet. New fuel system and then this all happens. I tried to pull the chip but it wont communicate with ecm. I want it stock so I can start my own build. Apps is parts store. It runs strong till the cel comes on then defuels. You can wait a second and then it runs iffy.

Newby here. Sorry if I posted in the wrong area. Just got this truck so the super chip is going in the trash. Ok I have full gauges. New vp new lp new apps. I have no white tag to set volts to first off. So how do I know what to set it to? Second it revs like a monster in neutral with 13psi. Wot it's at 11psi idol its 18psi. Pulls hard till about 20psi of boost or 2200 rpm. Then sometimes it does it at 10psi and 1400rpm. Sounds great till then. If you ease in to it it wont change anything. And I can't get the chip to connect to ecm. I get a code but only after I run the truck.shut it off code goes away.