Hi, I have a Predator programmer for my LLY engine which has had the 2.02? revision update. 2005 chev 2500HD. I sent it in because of hesitation and cutting out when you really needed it to work problems. Got unit back and never installed it till about a month ago. Now it cuts out when driving and seems to go into a limp mode. Tried to pull up code and says unknown code error. Do a reset on codes and sometimes it will go again most times I have to put factory tune back in. This is very dangerous when it cuts out while passing!
I have noticed that it seems to happen when I stop for a Couple of min and let idle then get back under way. Have trouble holding 100 kph when it does this and when I step on throttle it dies right out. Have checked filters and tire size settings etc. Runs flawless with stock tune.
Please help
Alain
