Looks like I've got a few issues with the engine codes. Anyone have any idea what these translate into, in terms of what's causing them?

I think most of the alarm codes are from when I hooked up my remote starter, but I am concerned about the first one in that group.

Brake light switch - Implausible Signal
Mt only guess here is the remote starter wire required to be hooked up to the brake light switch, somehow causing this.


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VAG-COM Version: Release 404.0-US


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

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Address 01: Engine
Controller: 8D0 907 557 N
Component: 1.8l R4/5VT MOTR AT D03
Coding: 06251
Shop #: WSC 06335
3 Faults Found:
16806 - Main Catalyst: Bank 1: Efficiency Below Threshold
P0422 - 35-10 - - - Intermittent
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent
17544 - Fuel Trim: Bank 1 (Add): System too Lean
P1136 - 35-00 - -
Readiness: 0000 0100

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Address 02: Auto Trans
Controller: 8D0 927 156 T
Component: AG5 01V 1.8lR4T US D06
Coding: 00000
Shop #: WSC 00000
1 Fault Found:
00526 - Brake Light Switch-F
27-00 - Implausible Signal

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Address 03: ABS Brakes
Controller: 4D0 907 379 L
Component: ABS/EDS BOSCH 5 4171
Coding: 0265109043
Shop #: BB 34171
No fault code found.

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Address 08: Auto HVAC
Controller: 8L0 820 043 B
Component: A4 KLIMAVOLLAUTOMAT_D73
Coding: 04142
Shop #: WSC 06026
No fault code found.

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Skipping Address 15-Airbags

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Address 17: Instruments
Controller: 8D0 919 036
Component: B5-KOMBIINSTRUMENT D10
Coding: 00242
Shop #: WSC 40626
No fault code found.

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Address 35: Centr. Locks
Controller: 8LO 862 257 B
Component: CV-Pump,Alarm, RC
Coding: 12172
Shop #: WSC 65535
8 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch: Driver's Side
35-00 - -
01372 - Alarm triggered by Door Contact Switch: Passenger Side or Rear
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01369 - Alarm triggered by Hood Switch
35-00 - -
01368 - Alarm triggered by Luggage Compartment Switch
35-00 - -
01373 - Alarm triggered by Radio Ground Contact
35-00 - -

End --------------------------------------------------------------------------------------------------

 

First problem is you need to replace your passenger side pre-catalytic converter O2 sensor. That should take care of your o2 problem and cat efficiency.

The 16825 evap code is usually from having a loose gas cap. If it keeps occuring you may need to fix the seal.

Many Automatic Transmission Control Modules will show a DTC 00526 or 17087 that indicates a faulty brake light switch. This can also be ignored and will not appear if you press the brakes once before checking for Fault Codes. Everytime I vag my car i get the same code.

The alarm triggering well speaks for itself. I get the Alarm triggered by Interior Monitoring occasionally. Ignore it.

 

Oh yeah, if your car is around 70k miles you will probably want to change both the left and right pre cat O2 sensors. They tend to go south at that mileage. You'll get better gas mileage anyways!

 

Yes ross tech says on there website to ignore the brake light code or to step on the brake before reading the module

 

THanks for that good info, guys. Since my engine is a 1.8, I only have 1 cat. Better gas mileage sounds good, last check was roughly 26.5. Not bad, but was hoping for a little better than that.