I will be making a several hundred mile trip this week and will post again if my problems recur. Again, after consulting the mechanic, I gave it a try and it appeared to solve the issue. So far, after a couple trips around town, so good.Ī possible solution to the hard start, also found online, was to disconnect the battery for several minutes to allow the computer to reset. After asking a very competent mechanic, they agreed that could be the problem so I removed the K&N and cleared the code. People were reporting getting this code, and I noticed a common factor: most had a K&N air filter. Then I did some research online (part of which was on these forums, which was why I felt it important enough to contribute my 2 cents). I was very worried to find that I still had both problems. I returned the tune back to stock by uninstalling the tune. The code was P0106 Manifold Absolute Pressure.Īfter sitting on it over night, I decided it really bugged me so I set out to find the problem this morning. I was thrilled with the improvement except for two problems: 1) the hard start and. After starting, the truck sounded fine.ĭuring the first 150 miles with the tune and new filter, I saw a dramatic improvement from 15 MPG to 20 MPG ("verified" using gallons used and odometer). The cylinders were cranking ~8-10 times before turning over and starting. The first thing I noticed is that the truck started horrible after the first program, and continued to start hard afterwards. After programming for "Regular" engine tune (since I run 87 octane), and performance transmission shift points and firmness. I got it three days ago and immediately slapped it in my truck, along with a K&N air filter. The fuel economy has been very disappointing as I have been seeing 15 MPG (when led to believe I should be able to see. Bought new end of February, completely stock up until this point. I have a 2013 Silverado 1500 with 5.3L, 7k miles. Just offerring my experience with the Bully Dog GT.
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