oxygen Lambda errors

sbrauns · 20-10-2004, 21:44

Help!
My engine light came on on my octavia RS. When i connected vag-com the following two errors came up.

2 Faults Found:
17524 - Oxygen (Lambda) Sensor Heating: B1 S1: Open Circuit
P1116 - 35-00 - -
17511 - Oxygen (Lambda) Sensor Heating: B1 S1: Performance too Low
P1103 - 35-00 - -

After i have reset the codes the light went out , but after a few minutes reading again the faults codes with vag-com the faults showed up again.

I did replace my stock airfilter with a K&N replacement recently. But this couldn't be the reason, right?

Is it safe to keep on driving my car, or is it bad for my CAT.

rich1068 · 20-10-2004, 22:06

This is not gospel but sensors do play up, alot

. A faulty lambda sensor will make your car run too rich/too lean to try and compensate for a fault that isn't there. Unfortunately a trip to the garage is on the cards but at least if you've visited them and they've said not to worry you're covered.

I wouldn't worry about your K&N but it depends on how arsey your dealers are.

MonkeyHanger · 20-10-2004, 22:44

Should be in limp mode with a faulty lambda sensor shouldn't it ?

IIRC Mr Panrix had this very problem last year and went into limp mode....well the car did, but sometimes i have my suspicions....

exFiesta · 20-10-2004, 22:46

Quote:

Originally Posted by MonkeyHanger

but sometimes i have my suspicions....

Lummox · 20-10-2004, 23:06

Sounds like the heater element in the lambda probe has gone to me by them fault codes, but a dealer has quite a few simple checks they can carry out with guided function diagnosis on VAS 5051, so pop it in.

Doing loads of lambda probes at the moment for various reasons. 2.0 Octavia is favourite for emission problems, most of which either stem from the cars being pootled about in on short journeys and never getting hot enough or faulty altitude sensors telling the engine ECU the car is up a bleeding mountain so it tries to compensate all the time.

It wont go into limp home, it just defaults to around 0.4v which is a mid range signal and puts the engine management light on. Car usually just splutters a bit or feels down on power.

sbrauns · 22-10-2004, 00:37

I now i got an other error!

16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-00 - -

other two are also stil there.

now what!
first lambda now my MAF?

wat is happening?
my car is chipped and i just installed that K&n replacement filter?
any ideas?

20-10-2004, 21:44	#1
sbrauns Briskodian Join Date: Jun 2004 Location: Netherlands Posts: 57 Members Car: Octavia RS Thanks: 0 Thanked 0 Times in 0 Posts	oxygen Lambda errors and MAF Help! My engine light came on on my octavia RS. When i connected vag-com the following two errors came up. 2 Faults Found: 17524 - Oxygen (Lambda) Sensor Heating: B1 S1: Open Circuit P1116 - 35-00 - - 17511 - Oxygen (Lambda) Sensor Heating: B1 S1: Performance too Low P1103 - 35-00 - - After i have reset the codes the light went out , but after a few minutes reading again the faults codes with vag-com the faults showed up again. I did replace my stock airfilter with a K&N replacement recently. But this couldn't be the reason, right? Is it safe to keep on driving my car, or is it bad for my CAT. Last edited by sbrauns; 22-10-2004 at 00:37.

20-10-2004, 22:06	#2
rich1068 Briskodian Join Date: Nov 2002 Location: North Posts: 2,708 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	This is not gospel but sensors do play up, alot . A faulty lambda sensor will make your car run too rich/too lean to try and compensate for a fault that isn't there. Unfortunately a trip to the garage is on the cards but at least if you've visited them and they've said not to worry you're covered. I wouldn't worry about your K&N but it depends on how arsey your dealers are. __________________ Rich. Skoda Octavia RS

20-10-2004, 23:06	#5
Lummox Partner Join Date: Sep 2003 Location: Newport Pagnell Posts: 22,981 Members Car: Mk2 Golf GTi 16v and building a 20VT MK2. Images: 2 Thanks: 29 Thanked 835 Times in 702 Posts	Sounds like the heater element in the lambda probe has gone to me by them fault codes, but a dealer has quite a few simple checks they can carry out with guided function diagnosis on VAS 5051, so pop it in. Doing loads of lambda probes at the moment for various reasons. 2.0 Octavia is favourite for emission problems, most of which either stem from the cars being pootled about in on short journeys and never getting hot enough or faulty altitude sensors telling the engine ECU the car is up a bleeding mountain so it tries to compensate all the time. It wont go into limp home, it just defaults to around 0.4v which is a mid range signal and puts the engine management light on. Car usually just splutters a bit or feels down on power. __________________ www.unit18.co.uk Remapping Service now available, PM for details.

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20-10-2004, 22:44	#3
MonkeyHanger Briskodian Join Date: Mar 2003 Location: Anywhere but here Posts: 8,779 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	Should be in limp mode with a faulty lambda sensor shouldn't it ? IIRC Mr Panrix had this very problem last year and went into limp mode....well the car did, but sometimes i have my suspicions....

22-10-2004, 00:37	#6
sbrauns Briskodian Join Date: Jun 2004 Location: Netherlands Posts: 57 Members Car: Octavia RS Thanks: 0 Thanked 0 Times in 0 Posts	I now i got an other error! 16486 - Mass Air Flow Sensor (G70): Signal too Low P0102 - 35-00 - - other two are also stil there. now what! first lambda now my MAF? wat is happening? my car is chipped and i just installed that K&n replacement filter? any ideas?