jrc922

I have a 2001 S4, MIL came on and I pulled 2 codes a p1113 and a p1131. I have the bently manual and it doesn't show that these are for the S4, it shows them to be for a 2000 2.8L 02 heater circuit bank 1 and bank2. Help Please!!!

donromani

It sounds like the preheaters for the o2 sensors are done for. The second set of 02 sensors has a small electrical preheater to get them up to operating temps quickly. Once these burn out the sensors give bad readings until the exhaust system has a chance to warm up (2 minutes or so).

The 2.7 is based off of the venerable 2.8 so the engineers might have used some of the same codes in ECU program.

Anyway, that's my best guess.

massboykie

For future reference you can use this site to search for the VAG DTC with
the OBDII code: http://dtcsearch.planetvag.com

Here's the two you posted.

17539 P1131 Bank2-Sensor1 Internal Rsistance too High VW, Audi, Skoda, Seat, Bentley, Lamborgini, Bugatti

17521 P1113 Bank1-Sensor1 Internal Resistance too High VW, Audi, Skoda, Seat, Bentley, Lamborgini, Bugatti

Ross-Tech has plenty information on fixes etc: http://wiki.ross-tech.com/wiki/index.php/Main_Page

Hope that helps

Cheers
Massboykie

Pete@ECSTuning

Those would be your front O2 sensors, which makes sense, as they usually go in pairs. Here is a link to them:

jondin2000

Can anyone help me with this codes please

Chassis Type: 8D - Audi S4 B5
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77

-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl

Component: 2.7l V6/5VT G 0003



16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold
P0421 - 35-10 - - - Intermittent
17862 - Exhaust Gas Temp Sensor 1 (G235): Short to Ground
P1454 - 35-10 - - - Intermittent
17870 - Exhaust Gas Temp Regulation for Bank 2: Implausible Signal
P1462 - 35-10 - - - Intermittent
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-10 - - - Intermittent
17865 - Exhaust Gas Temp Sensor 2 (G236): Open or Short to Plus
P1457 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 8D0 927 156 BS
Component: AG5 01V 2.7l5VT USA 3132
Coding: 00002
Shop #: WSC 00000
VCID: 7F07F66C578F

1 Fault Found:
17125 - Torque Converter Clutch: Stuck OFF / No Power being transferred
P0741 - 35-00 - -

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jrc922