[MilkyWitness]

I had a stage 2 tune with Tomei UEL headers, and went back to stock tune/headers because I wanted to get some EL headers and sell the UEL. Anyways I was tuned with ECUTek and I used their program to go back to the stock tune. No CEL, let the ECU relearn.

Now I am getting a weird clatter noise. I have made sure nothing is lose, I've been under my car for the past 3 days chasing anything I can find and making sure its secure.

When I am driving I will be between 2-3k RPM in any gear and give it some gas whether its light throttle or heavy throttle like 2/3 times I can make it have a little clatter sound. Almost sounds like valve clatter or something? Maybe it has to do with VVT? I was told my stage 2 tune had an aggressive vvt setting, and am wondering what happened when I went back to stock because I have this weird clatter sound I never heard before. It seems to be easier to reproduce it when I am going uphill.