Alright 4 of them are engine misfire

P0301 (cylinder 1)
P0304 (cylinder 4)
P0303 (cylinder 3)
P0302 (cylinder 2)

I also got P0010, P0130, P0102, P0300

Help! This is in relation to my other thread, car drives fine, idle is rough and stumbling at idle/stop.

 

I think P0102 relating to the MASS AIR FLOW is a code I didn't clear after I replaced the sensor. It's P0300 and P0010 that have me concerned the most.

 

I found it today! An air leak! One of my hoses by the intake has a huge hole in it. Hey they guy at Advanced Auto couldn't help me ID this hose, do any of you have an idea?

This is the hose coming off the back of the intake runs along and kinda under the coolant reservoir.

 

Where's the other end of it go?

 

Mine broke too! It took me for ever to find it. I think it has something to do with the PCV system.

 

It was hard as hell to find because it broke right along the seam of the bend...tricky bastard.

 

So did mine, I visually inspected everything a couple times, it wasn't until I decided to squeeze everything not just look, that I finally saw it.

 

If anyone can please tell me what the hell this is, the duct tape is where the giant hole is.

 

Its part of your PCV system.

 

I figured it out last night thanks to the folks at Audizine. It's called the L hose for the vacuum suction pump.

http://www.ecstuning.com/Audi-B5_A4-...oses/ES251440/