Fault codes:P0431,P0421,P1603-intermittent?
02-18-2011, 06:02 AM
#11
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Hi I'm new to all this I have the same code P0421 and I want to know What reflashing means?? and what is the solution to this code other than changing kat converter or O2 sensor because aparently that will not fix it. My Audi A6's Kat converter looks prety neat and It does not make any sound the car has 81000 miles
Thanks
Thanks
02-19-2011, 05:50 AM
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03-01-2011, 04:42 AM
#16
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Similar problem - VAGCOM Autoscan
I have a similar problem and I just recently bought the VAGCOM. So here are my results:
2000 AUDI A4 B5 2.8L V6/5V - ATQ
Address 01: Engine Labels: 078-907-551-ATQ.lbl
Part No: 3B0 907 551 G
Component: 2.8L V6/5V G 0050
Coding: 07251
Shop #: WSC 22172
VCID: 27530475EF6B
6 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17831 - Secondary Air Injection System; Bank 1: Insufficient Flow
P1423 - 35-10 - - - Intermittent
17819 - Secondary Air Injection System; Bank 2: Insufficient Flow
P1411 - 35-10 - - - Intermittent
16815 - Warm Up Catalyst; Bank 2: Efficiency Below Threshold
P0431 - 35-10 - - - Intermittent
16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold
P0421 - 35-10 - - - Intermittent
17977 - Cruise Control Switch (E45): Implausible Signal
P1569 - 35-10 - - - Intermittent Readiness: 0000 0000
Thank you for any help and direction.
2000 AUDI A4 B5 2.8L V6/5V - ATQ
Address 01: Engine Labels: 078-907-551-ATQ.lbl
Part No: 3B0 907 551 G
Component: 2.8L V6/5V G 0050
Coding: 07251
Shop #: WSC 22172
VCID: 27530475EF6B
6 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17831 - Secondary Air Injection System; Bank 1: Insufficient Flow
P1423 - 35-10 - - - Intermittent
17819 - Secondary Air Injection System; Bank 2: Insufficient Flow
P1411 - 35-10 - - - Intermittent
16815 - Warm Up Catalyst; Bank 2: Efficiency Below Threshold
P0431 - 35-10 - - - Intermittent
16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold
P0421 - 35-10 - - - Intermittent
17977 - Cruise Control Switch (E45): Implausible Signal
P1569 - 35-10 - - - Intermittent Readiness: 0000 0000
Thank you for any help and direction.
03-01-2011, 07:00 AM
#17
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Based on the software level (0050) of this Ecm it looks like the update programing for the Catalyst Efficiency was already done. The TSB # were: 26-08-07 | 2013086/2. That supersedes the older version 26-05-04.
Since most of those are intermittent I would clear them and see which one(s) return first.
(E45)is the Cruise Control Switch and you should be able to find testing information in the repair manual. Measuring Block 66 will show you the binary switching positions for the stalk:
066,1,Vehicle Speed,(current)
066,2,Switch Positions I
xxx? = Brake Light Switch
xx?x = Brake Pedal Switch
x?xx = Clutch Pedal Switch
?xxx = CCS (Cruise Control System) enabled
066,3,Vehicle Speed,(specified)
066,4,Switch Positions II
xxx? = CCS ON (CAN)
xx?x = SET (CCS ON)
x?xx = Deceleration (-) / Set
?xxx = Acceleration (+) / Resume
Since most of those are intermittent I would clear them and see which one(s) return first.
(E45)is the Cruise Control Switch and you should be able to find testing information in the repair manual. Measuring Block 66 will show you the binary switching positions for the stalk:
066,1,Vehicle Speed,(current)
066,2,Switch Positions I
xxx? = Brake Light Switch
xx?x = Brake Pedal Switch
x?xx = Clutch Pedal Switch
?xxx = CCS (Cruise Control System) enabled
066,3,Vehicle Speed,(specified)
066,4,Switch Positions II
xxx? = CCS ON (CAN)
xx?x = SET (CCS ON)
x?xx = Deceleration (-) / Set
?xxx = Acceleration (+) / Resume
03-03-2011, 12:27 PM
#18
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Cleared codes and some have returned already
Based on the software level (0050) of this Ecm it looks like the update programing for the Catalyst Efficiency was already done. The TSB # were: 26-08-07 | 2013086/2. That supersedes the older version 26-05-04.
Since most of those are intermittent I would clear them and see which one(s) return first.
Since most of those are intermittent I would clear them and see which one(s) return first.
17831 - Secondary Air Injection System; Bank 1: Insufficient Flow
P1423 - 35-00 - -
17819 - Secondary Air Injection System; Bank 2: Insufficient Flow
P1411 - 35-00 - -
What action do you recommend I take?
03-03-2011, 06:00 PM
#19
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http://wiki.ross-tech.com/wiki/index...9/P1411/005137
It's highly unlikely that both Combi valves are faulty. It is more likely that the main SAI pump, Supply hoses to/from the pump or the main vacuum supply solenoid are faulty.
Run the Guided Readiness test plan with VCDS and see if both banks fail at idle, if so this will be much easier to diagnose than a intermittent problem.
http://www.ross-tech.com/vcds/tour/readiness.html
You can run Output tests Key On Engine Off as well. You may want to do that with the repair manual, hand vacuum pump and DVOM handy to make the most of it:
http://www.ross-tech.com/vcds/tour/out_test.html
03-12-2011, 12:08 PM
#20
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Please help P0421 Static, p0431 Static, P0300 misfiring, p0304 misfire, P0025 timin
Hello Audi world,
I am new to this world. I bought a 2002 A4 3.0L and one pf my friends scan my car. I had all those P0421, and P0431 but in my case their static. These codes mean I need to buy new catalyc converters? If so, where can i buy them there $ 1,200 a piece at the dealer.
Thank you so much for your help.
I am new to this world. I bought a 2002 A4 3.0L and one pf my friends scan my car. I had all those P0421, and P0431 but in my case their static. These codes mean I need to buy new catalyc converters? If so, where can i buy them there $ 1,200 a piece at the dealer.
Thank you so much for your help.