Im getting little to no black smoke. I was running a diablosport tune on 100hp and before the last update I had a good amount of smoke. Some time after the update (it was several days later before i noticed) no smoke. I thought it was the new tune. Now I have a PPE tune in it on 160hp and still no smoke. I have the egr clean and unpluged. Am i running out of fuel? Fuel pump going bad? MPG seems to be down a bit but with all the differant tunes I cant make a apples to apples comparison.