[Strictlybusiness335]

I'm at a loss, I just did the EGR, swirl flaps and DPF deletes. Malone tune with Tunezilla, and now my car is throwing these codes and is stuck in limp mode. I ordered a new boost pressure converter but it will be here tomorrow. Any ideas?

498E
0il-level sensor
46F6
Wastegate valve, activation
46D6
Compressor bypass plate, activation
4BD6
Engine mount, activation
49A5
LIN bus : Communication fault

[lnxguy]

Sounds like you forgot to plug something back in.

[Strictlybusiness335]

Not that I can tell, everything unplugged has been deleted.

[lnxguy]

You plug the vacuum lines in properly? Might have something reversed seeing that you're getting both wastegate and compressor bypass errors. I'll also assume you've cleared codes and these are ones that are constantly popping back up?

[Tomnavigator]

Did you plug your oxygen sensor back in? This was the first sensor in the inlet side of the DPF.

[Strictlybusiness335]

Let me update you guys; as far as vacuum lines go I thought everything was plugged in correctly but when I was on the phone with a buddy I decided to check the motor mounts vaccuum lines and low and behold the passenger side was/is not connected which would make sense! I just got back from the store getting some necessities and will be tackling that in a minute.

I don't know how that effects the entire system, but before I realized this I had someone start the car while I watched the actuator arm to see if it moves when the vehicle started and shut down. It did not move either time.

I'm hoping the leak at the motor mount is the issue all together. Would that put me into limp mode? Also not sure why my oil level sensor is throwing a code when before it worked fine...

[Strictlybusiness335]

Well that didn't solve shit.

What am I supposed to do with the 2 lines that run to the DPF? They're mounted on the passenger side almost against the firewall.

[lnxguy]

The sensor furthest upstream on the DPF(closest to big turbo) get's plugged into the new downpipe.

[Strictlybusiness335]

I didn't mean sensors, I meant the 2 vaccuum lines. Both the o2 and the EGT are plugged in and working fine.

[335dlci]

Originally Posted by Strictlybusiness335

I didn't mean sensors, I meant the 2 vaccuum lines. Both the o2 and the EGT are plugged in and working fine.

Vacuum on The dpf? No.

[BB_cuda]

Originally Posted by Strictlybusiness335

I didn't mean sensors, I meant the 2 vaccuum lines. Both the o2 and the EGT are plugged in and working fine.

There is a differential pressure sensor that those black lines go to. It tells ECU [when not deleted] when it's time to do a regen. I just left those hanging there after disconnecting from DPF. Its okay to leave the differential P sensor plugged into harness. I have had 2 opposite results of running with it not plugged in.
The 335d doesn't care and the X5D does report it to my Foxwell scanner but no CEL on dash. So i plugged it back in on the X5D.

[Strictlybusiness335]

Originally Posted by BB_cuda

There is a differential pressure sensor that those black lines go to. It tells ECU [when not deleted] when it's time to do a regen. I just left those hanging there after disconnecting from DPF. Its okay to leave the differential P sensor plugged into harness. I have had 2 opposite results of running with it not plugged in.
The 335d doesn't care and the X5D does report it to my Foxwell scanner but no CEL on dash. So i plugged it back in on the X5D.

Thanks bro I just wanted to eliminate that from being a potential reason.

So I tested the wastegate with a pressure gun, seems to be working fine and doesn't leak as it held 25psi without falling off. So that's good.

A new boost solenoid/pressure converter comes in today so when I get off from work tonight I'm gonna plug that in, run respective vaccuum lines to it and see what happens.

[Strictlybusiness335]

Originally Posted by 335dlci

Vacuum on The dpf? No.

Weird, Cuba knew exactly what I was talking about and was able to easily explain what it was educating me while not being a prick.

[Strictlybusiness335]

I've inspected every vaccuum line and replaced anything that was questionable. I've pulled both changeover solenoids and they are working fine. They have the proper resistance. They hold vaccuum and I can hear them click when supplied with 12v's.

I'm completely lost. How many volts should be at the clip for both solenoids?

Also tested boost solenoids which are good. Everything holds vaccuum from my wastegate to the actuator.

[nonford]

Whats Malone say?