[vipergtx500]

There is a popping/snapping sound coming from the engine at idle only. This is the second time this occured, the first was slightly different as i only heard it out of the exhaust, (post about that), but in this case it's only coming from the engine bay. The same symptoms occured this time except it didn't throw any codes. The car performs kinda rough, and it could be placebo but it feels slightly underpowered. I scanned the car and it's not throwing any codes. There's always a constant ticking sound coming from the driver side valve cover, probably valve tap which I'm going to look into fixing as soon as it warms up. Could the popping and valve tap be related? The other occurrence went away when I let the car cool down so I'm going to see if that does the trick this time but I want to narrow this down so it doesn't happen again. Any thoughts?