After getting the 6.2 tuned after putting in forged internals and cam truck dies when putting in drive after reversing and when I put in park the rpms shoot down to about 200 then shoot up to 1000. Anything else other then maybe tune? I cleaned throttle body already

 

Mine does that to not trying jake your thread. But mine is an 01

 

its a tuning issue....i had the same problem. took it back to Nelson and he corrected it in the tune

 

Somebody didnt tune it for the cam correctly.

 

Plus truck smells like gas pretty bad. If I stand next to my exhaust tip I'll smell like gas the rest of the day

 

did you delete the cats?

 

Yes cats are delete and I know they make the smell worse but I been having no cats for 3 years and this smell is like if gas is leaking

 

then you are pig rich

 

I would think with a aftermarket cam, more fuel is going to unburned at idle just because of the way they act and function.

But still the tune is off if it can't even idle correctly.

 

Your EOIT is off.

Search HP Tuners. There is a spreadsheet floating around that you input the new cam info, it spits out new EOIT values.

I did it on mine and buy buy raw fuel smell and cylinder washing.

YMMV though. Some people noted that it didn't do anything, others said it helped a ton.