MikeB4
Well-known member
Found a cracked hose
I thought that I may have been sucking in un-metered air, and that's why my MAF actual was always over 400 when requested was 340 (yes, I do have the EGR adaptation value changed up).
The next thing I noticed was that the vacuum to the EGR diaphragm was very weak after blipping the throttle in the EGR diagnostic steps. My vacuum pump / guage was broken, so I didn't have one at the time. I just bought a new one so I'll look at it more this weekend, because I then noticed the recirc door is no longer working. Maybe there is a leak somewhere from my primary vacuum pump if neither is working. How much vacuum should the EGR pressure converter allow to the EGR diaphragm anyway?
P.S. It's getting cold up here in Indianapolis. If someone from the South wants to buy this B4V, I'm sure it will be happy to move to warmer climates!
OK, I'm getting there, one problem at a time. I was following the EGR troubleshooting steps, and indeed my upper breather hose from the CCV puck to the intake was split around the hose clamp. Unfortunately, I didn't see that one from any of the TDICLUB vendors, so I went and paid full dealer retail price! $60 for 6 inches of hose. Awesome.It's not just being stuck, it's the N18 valve not doing it's job.
But if that code's gone, you might have fixed it.
I thought that I may have been sucking in un-metered air, and that's why my MAF actual was always over 400 when requested was 340 (yes, I do have the EGR adaptation value changed up).
The next thing I noticed was that the vacuum to the EGR diaphragm was very weak after blipping the throttle in the EGR diagnostic steps. My vacuum pump / guage was broken, so I didn't have one at the time. I just bought a new one so I'll look at it more this weekend, because I then noticed the recirc door is no longer working. Maybe there is a leak somewhere from my primary vacuum pump if neither is working. How much vacuum should the EGR pressure converter allow to the EGR diaphragm anyway?
P.S. It's getting cold up here in Indianapolis. If someone from the South wants to buy this B4V, I'm sure it will be happy to move to warmer climates!