It's possible there is still a vacuum leak somewhere. Only way to be sure without the obvious is to do a smoke test. They're expensive though, but I made my own out of small paint can and 20 dollars in parts, lol.

Try unplugging the MAF, monitor the fuel trims, and it should run extremely rich. If you know somebody with a G, Maxima, 350Z, or similar engine try to see if you can borrow their MAF to see how it runs. The MAFs can go bad, but you wouldn't know it. I'd at least clean your MAF first.

I'd stick some fuel system cleaner in there as well BG44K works great.

Your idle speed is way to high, I think it should be at 650 +-50. You're not getting a P0507 error about it being that high?

Oh yea, I think if you have Berks HFC you don't need the foulers they're built-in. So, I don't think that would be an issue now and since it's only oneside.

I'd swap the O2 sensors when you have the headers off.

 

Ok I will try that next then! Thank for your help I really appreciate it a lot! I'll update soon

 

Just cleaned MAF and it didn't do anything. My AC sounds like it's trying to kick on I can hear the click in engine bay and then cuts off and starts all over again it happens a lot

 

Maybe your AC is low on refrigerant? I'd wait till Friday then and swap the sensors and see if the code moves. No sense trying to throw parts at it.

 

Yea I recharged the AC a few weeks ago so I'm hoping it's not that lol then it would be an AC leak now. But yea I'm going to wait till Friday! Hopefully all goes well with the install! I'm anxious and scared but after I'm done it should be a great feeling of accomplishment

 

Yea, that sucks. So, your idle is still that high with the AC off?

 

That's with the AC on....the noise seems to stop making that clicking noise like it's trying to kick on or something but keeps getting cut off. And idle seems to get a lil better with AC off though..maybe the coolant lines need to be "burped"..I'm going to be draining with header install so I guess we will see tomorrow

 

Also where did you buy the clamps for the bigger aftermarket hoses?

 

I just went to harbor freight and bought a huge selection of different size clamps. The correct ones were ridicously expensive.

If you're not having overheating issues I don't think you need to bleed the system. I'd check the pressure of your ac system or get one of those UV kits.

I think you probably should try to do an idle relaern if you're. It around 650+- 50 with the ac off.

 

Ok thanks man! I appreciate it