Hey guys, I just killed myself for the past month on my firstever build. It's a 2000 Corvette with an ls3 with a cam, modded heads, modded intake, 25% ud pulley, all the bolt on's. Finally finished it up, got the 500 miles on the new clutch and took it to my tuner for the street/dyno tuning. Very excited to say the least. Unfortunately, when the guy got back from the drive, he said it was going lean at WOT and we could not strap it down until I sorted that out. His suggestions were: vacuum leak, bad throttle body, dying fuel pump, or poor workmanship on the intake porting. So a week later I have completed the following to try and correct this: 1. smoke tested the intake system. I did find a couple of small leaks in the pcv system and fixed it...no change. 2. check fuel pressure and it never dropped below 56.5 psi at WOT, 3. swapped out the brand new delphi front o2's with brand new delphi rear sensors positioned in front with adapters per LG Motorports instructions for their LT headers...no change 4. replaced the MAF with brand new delphi...no change. 5. replaced the intake manifold with brand new LS3 oem unit...no change. 6. took the LS2 silver blade throttle body off and put on a stock ls1...no change. The only other thing that I have read on the webs to do is check for exhaust leaks. My system is brand new and not making any noise that would indicate a leak. I'm starting to think that the tuner has missed something. Can you guys check out my tune and log and give some advice please???
Thank you all in advance.
pull3.hpl
pull1.hpl
street tune w added calc airmass.hpt
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Originally Posted by 5FDP
