Mystery warning light?

biggow · Jul 5th, 2007, 20:17

Hi all,

Can anyone tell me what this warning light, that appeared on my '99 T4 this morning, means:

There's no mention of it in the owners manual, and I've searched on here and can't find it, so I'm stumped.

Thanks in advance.

Clan · Jul 5th, 2007, 20:19

That indicates a problem with the engine managment , maybe an emission problem hence the lambda symbol , you will need to get the fault codes read and let that lead you in the right direction ..

biggow · Jul 6th, 2007, 12:11

Thanks Clan.

I can't say I'd ever heard of the 'Lambda' symbol, and needed to Google it just to find out what it means - 'The 11th letter of the greek aplhabet'. That's pretty obscure just to tell you there's something wrong with engine management. It also seems very odd to me that it's not listed in the owners manual. Talk about making things difficult for people!

Anyway, thanks again.

CTCNetwork · Jul 6th, 2007, 12:32

Hi,

Try Googling Lambda sond instead!!

The Lambda Sond or sensor detects issues with the efficiency of the engine and gives warnings when incorrect fueling is detected.
The fault could lie with a faulty Lambda sensor, or some other fault on the engine management system.

Best bet is to get your fault codes read so you have an idea where the problem lies..

Des. . .

niloc · Jul 6th, 2007, 12:50

Yup, the engine management system has discovered a fault worthy of warning you. The fault codes can be read with the OBD system (On Board Diagnostics). You will need to purchase a reader (eBay).

GorgeousGeorge · Jul 6th, 2007, 13:20

hiya

check your filler cap is tight, if its loose that will cause a CEL.

cheers

scott

Streethawk · Feb 11th, 2011, 09:39

My manual shows the lambda symbol as the last but one warning light on the bottom right and states as you guys have that it indicates an engine problem, possibly emissions. However my problem is that on my car I don't have a warning light with a lambda symbol there but I have what I think is supposed to be an engine but it's hard to tell. My question is this even though it's a different picture is it still the engine warning light. It seems reasonable that it would be as it's in the same place and looks a bit like an engine. Confirmation off someone who knows would be nice though. If it is does this mean I have to take it to a garage to have it diagnosed by computer to find out what's wrong?

Jul 5th, 2007, 20:17	#1
biggow New Member Last Online: Jul 6th, 2007 12:11 Join Date: Jan 2007 Location: London	Mystery warning light? Hi all, Can anyone tell me what this warning light, that appeared on my '99 T4 this morning, means: There's no mention of it in the owners manual, and I've searched on here and can't find it, so I'm stumped. Thanks in advance.

Jul 6th, 2007, 12:11	#3
biggow New Member Last Online: Jul 6th, 2007 12:11 Join Date: Jan 2007 Location: London	Thanks Clan. I can't say I'd ever heard of the 'Lambda' symbol, and needed to Google it just to find out what it means - 'The 11th letter of the greek aplhabet'. That's pretty obscure just to tell you there's something wrong with engine management. It also seems very odd to me that it's not listed in the owners manual. Talk about making things difficult for people! Anyway, thanks again. Last edited by biggow; Jul 6th, 2007 at 12:13.

Jul 6th, 2007, 12:32	#4
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, Try Googling Lambda sond instead!! The Lambda Sond or sensor detects issues with the efficiency of the engine and gives warnings when incorrect fueling is detected. The fault could lie with a faulty Lambda sensor, or some other fault on the engine management system. Best bet is to get your fault codes read so you have an idea where the problem lies.. Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Jul 6th, 2007, 12:50	#5
niloc SWV Benefactor Last Online: Jan 30th, 2013 13:44 Join Date: Dec 2001 Location: Newport, South Wales	Yup, the engine management system has discovered a fault worthy of warning you. The fault codes can be read with the OBD system (On Board Diagnostics). You will need to purchase a reader (eBay). __________________ Refitting is the reverse of removal???.....Yeah, right!

Feb 11th, 2011, 09:39	#7
Streethawk New Member Last Online: Feb 2nd, 2018 12:52 Join Date: Jan 2011 Location: Wrexham	Lambda warning light that isn't My manual shows the lambda symbol as the last but one warning light on the bottom right and states as you guys have that it indicates an engine problem, possibly emissions. However my problem is that on my car I don't have a warning light with a lambda symbol there but I have what I think is supposed to be an engine but it's hard to tell. My question is this even though it's a different picture is it still the engine warning light. It seems reasonable that it would be as it's in the same place and looks a bit like an engine. Confirmation off someone who knows would be nice though. If it is does this mean I have to take it to a garage to have it diagnosed by computer to find out what's wrong? __________________ Silver V70 2.5 Petrol Auto non-turbo owned from 86k in 2009, made it to 128k. New owners going to put back on road

Jul 5th, 2007, 20:19	#2
Clan Experienced Member Last Online: Today 15:53 Join Date: Jun 2007 Location: L/H side	That indicates a problem with the engine managment , maybe an emission problem hence the lambda symbol , you will need to get the fault codes read and let that lead you in the right direction ..

Jul 6th, 2007, 13:20	#6
GorgeousGeorge Bostin !!! Last Online: Aug 22nd, 2019 19:07 Join Date: Dec 2001 Location: Monkhopton	hiya check your filler cap is tight, if its loose that will cause a CEL. cheers scott

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