Help w/ Errors on N55 after replacing Starter...

[ArtemisEntreri.1111]

Hi all,

First time here. Long story short, here's what I did:

• The car has NEVER had any issues/errors, etc. perfectly maintained and fine.
• Removed Intake Manifold
• Replaced Starter and OH what a B that was to get all the way back there...even w/ special tools was risky...
• Put everything back together
• Started Car..... into LIMP MODE all the sudden, never happened EVER before
• Diagnosed w/ THOR + MHD reader and received these errors:

The errors are :
- DME active codes -

• 277A - Hot film air mass meter, signal: Electrical fault.
• 2C58 - Charging pressure control: Switch-off as consequential reaction.
• 2D53 - VANOS solenoid valve, inlet, activation: Line disconnection.
• 2D9D - VANOS solenoid valve, exhaust , exhaust, activation: Line disconnection.
• 3150 - Differential pressure sensor, fuel tank ventilation system, electrical: Short circuit to B+.

- DME shadow (inactive) codes -

• 2DAD VANOS, exhaust, collective fault: electrical or mechanical
• 2DAE VANOS, inlet, collective fault: electrical or mechanical
• 2DAF - VANOS: Multiple fault.
  

What I have done so far to try and fix... (hoping to not have to remove manifold again but I might have to, to ensure all connectivity)

• Made sure everything is connected / reconnected everything.. like 5x
• Put the stock Charge pipe back in, to ensure all sensors/connections good
• cleaned sensors with MAF sensor cleaner
• Cleared DME codes + Reset Adaptations + Disconnect. Battery for 10 min+
• it can't be a bad sensor, it's gotta be something with connection, fuses, relay, etc. I believe which is why I think I'll have to take manifold off 1 more time or something
  
  

The only thing I can think of to do left is:

• Take the manifold off and clean all sensors and reconnect
• Check all fuses/ relays and replace them, incase I shorted it out somehow?
• Take advice from all of you

[Trainwreck914]

Are you sure all the connections are good? When you take the intake manifold off. There are 5 connections to the main ecu. It's possible one isn't seated properly.