No P0602 here either from the BDDL (checked at the dealer this morning). I had the same problems as coobie and got the same run around. "Check your connections" over and over again. Funny thing is that I've probably had the rail and map connectors on and off over 100 time testing different boxes and never a code related to these two sensor until I ran the Quad box. Just my experience. If it runs code and issue free on your truck it is one sweet little box though.

Richard

 

I was considering the quad but this isn't the only website that I hear people talking about it throwing codes. It seems pretty common. All I hear is good things about the Bully Dog power pup, and it seems to have the most performance for the buck, especially wiith the Crazy Larry setting.

 

Never had a code due to the Quad Chip on my 03.
Plenty of power.

 

You can't use most of the Crazy Larry with the stock turbo

 

i have the quad zxt box (towing box) it has never thrown a code yet. very happy with it!

 

I think you will hear more issue on sites like this because I ask for the problem openly in a forum most of the time. It is not always a problem, but we try to make things perfect one way or another. I will never satisfy 100% of the customers that use us or try us, but I think we are getting pretty darn close.

If you like the downloader then get it, competition makes the world go around. Just remember that if you want to use the Crazy Larry you need to add a lot of parts or the power won't be there ie transmission.

Also if you want bang for the buck our 130hp race box is pretty hard to beat for the money.

Quad