Running lean on bank 1
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From: munki on 3 Sep 2009 17:03 "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message news:h7pa0o$t7f$1(a)news.eternal-september.org... > munki wrote: >> mk4 golf 1.6s 16v 2001 >> >> I have been getting and error code (forgot the code at work) that says >> engine running too lean on bank 1. >> >> What exactly is the problem ? >> >> From googling I was told its a knackered lambda or a knackered maf ? ... >> or am I barking up the wrong tree. >> >> The mechanic said just whip out the lambda and clean it with brake >> cleaner ? is that a good idea or ... >> >> Advice welcomed as always :) > What was the car scanned with? If it wasn't VAG-COM/VCDS or a dealer > computer I'd get it rescanned with one of those as they may reveal more > info thana generic OBD-II scanner. If you ask on one of the VAG forums > someone will usually do it for you for a pint or two. > > http://www.ross-tech.com/vag-com/dtc-comparison.html > > Have a look here for suggested causes: > > http://wiki.ross-tech.com/index.php/16555/P0171/000369 > > The best way to test a MAF is with VCDS, but a quick and dirty check is to > unplug it. The car should run much worse. > > http://www.ross-tech.net/vag-com/advertising/DiagnosingA_MAF_TechTip.pdf > Forgot to mention a few months back a warning light came up on the dash engine management one, and I scanned it there and then ... well parked first lol ... and it gave a code out for a faulty lambda sensor. I erased it forgetting which sensor it was and waited to see if it came back which it didn't so assumed as was ok. Now within the last 12 months I changed the front pre cat lambda as it was faulty so I can only guess it was the other one, but possibly it could be the new one gone again ? (I do use mainly supermarket fuel, which I know is not the best grade) But as I say no warning lights for the lambda came back. Just this new one about the engine running lean. Also worth mentioning I think is a slightly eggy stink but not noticeable now, or maybe I have gotten used to it. Well I do usesually drop the windows, perhaps not in this heavy rain were getting down south. Thats about as much detailed information as I have to help.
From: Duncan Wood on 3 Sep 2009 17:05 On Thu, 03 Sep 2009 21:58:44 +0100, munki <none(a)none.com> wrote: > > "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message > news:h7pa0o$t7f$1(a)news.eternal-september.org... >> munki wrote: >>> mk4 golf 1.6s 16v 2001 >>> >>> I have been getting and error code (forgot the code at work) that says >>> engine running too lean on bank 1. >>> >>> What exactly is the problem ? >>> >>> From googling I was told its a knackered lambda or a knackered maf ? >>> ... >>> or am I barking up the wrong tree. >>> >>> The mechanic said just whip out the lambda and clean it with brake >>> cleaner ? is that a good idea or ... >>> >>> Advice welcomed as always :) >> What was the car scanned with? If it wasn't VAG-COM/VCDS or a dealer >> computer I'd get it rescanned with one of those as they may reveal more >> info thana generic OBD-II scanner. If you ask on one of the VAG forums >> someone will usually do it for you for a pint or two. > > It was scanned with a sealey VAG scanner I bought.. > >> http://www.ross-tech.com/vag-com/dtc-comparison.html >> >> Have a look here for suggested causes: >> >> http://wiki.ross-tech.com/index.php/16555/P0171/000369 >> >> The best way to test a MAF is with VCDS, but a quick and dirty check is >> to >> unplug it. The car should run much worse. >> >> http://www.ross-tech.net/vag-com/advertising/DiagnosingA_MAF_TechTip.pdf >> > > Thanks for the links. I'm going to give them a good read now. > > Also been suggested it could be a VAC leak, and to open the bonet and > have > a listen for hissing sounds. First job of the morning :) > > Then see where the MAF is located on the 1.6 16v 01 .. searches for > haynes. > > Obviously you woulkdn't search for "Erwin Golf" or "bentley golf manual" Torrent as that would be bad.
From: Dave Baker on 3 Sep 2009 17:06 "munki" <none(a)none.com> wrote in message news:h7panv$5ic$1(a)aioe.org... > > "Dave Baker" <Null(a)null.com> wrote in message > news:h7p9lc$25i$1(a)news.datemas.de... >> >> "munki" <none(a)none.com> wrote in message news:h7p7ka$1gu$1(a)aioe.org... >>> mk4 golf 1.6s 16v 2001 >>> >>> I have been getting and error code (forgot the code at work) that says >>> engine running too lean on bank 1. >>> >>> What exactly is the problem ? >>> >>> From googling I was told its a knackered lambda or a knackered maf ? ... >>> or am I barking up the wrong tree. >>> >>> The mechanic said just whip out the lambda and clean it with brake >>> cleaner ? is that a good idea or ... >>> >>> Advice welcomed as always :) >> >> Probably better to clean it in an ultrasonic cleaner like the four I >> bought in Aldi a few years ago for �15 each. I figured at that price it'd >> be handy to have a few spares for gifts to friends and in case one went >> wrong. Just the job for sorting out blocked injectors, dirty jewellery >> etc. I'm about to do my own lambda sensor before the next MOT is due so >> if you want I'll do yours too and post it back. >> > > Ahh, that does sound a better idea and less crude. That is a very generous > offer I may take you up on and will drop a few extra pennies in for a few > pints *thumbs up* > > I shall have a look for VAC leaks first and then remove the lambda :) No pennies needed. Someone on Usenet I've never met helped me out with some ram to upgrade my old pc and to balance my karma I need to do a favour for someone in return. -- Dave Baker
From: Mrcheerful on 3 Sep 2009 17:15
munki wrote: > "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message > news:h7pa0o$t7f$1(a)news.eternal-september.org... >> munki wrote: >>> mk4 golf 1.6s 16v 2001 >>> >>> I have been getting and error code (forgot the code at work) that >>> says engine running too lean on bank 1. >>> >>> What exactly is the problem ? >>> >>> From googling I was told its a knackered lambda or a knackered maf >>> ? ... or am I barking up the wrong tree. >>> >>> The mechanic said just whip out the lambda and clean it with brake >>> cleaner ? is that a good idea or ... >>> >>> Advice welcomed as always :) >> What was the car scanned with? If it wasn't VAG-COM/VCDS or a dealer >> computer I'd get it rescanned with one of those as they may reveal >> more info thana generic OBD-II scanner. If you ask on one of the VAG >> forums someone will usually do it for you for a pint or two. >> >> http://www.ross-tech.com/vag-com/dtc-comparison.html >> >> Have a look here for suggested causes: >> >> http://wiki.ross-tech.com/index.php/16555/P0171/000369 >> >> The best way to test a MAF is with VCDS, but a quick and dirty check >> is to unplug it. The car should run much worse. >> >> http://www.ross-tech.net/vag-com/advertising/DiagnosingA_MAF_TechTip.pdf >> > > Forgot to mention a few months back a warning light came up on the > dash engine management one, and I scanned it there and then ... well > parked first lol ... and it gave a code out for a faulty lambda > sensor. I erased it forgetting which sensor it was and waited to see > if it came back which it didn't so assumed as was ok. Now within the > last 12 months I changed the front pre cat lambda as it was faulty so > I can only guess it was the other one, but possibly it could be the > new one gone again ? (I do use mainly supermarket fuel, which I know > is not the best grade) > But as I say no warning lights for the lambda came back. Just this > new one about the engine running lean. Also worth mentioning I think > is a slightly eggy stink but not noticeable now, or maybe I have > gotten used to it. Well I do usesually drop the windows, perhaps not > in this heavy rain were getting down south. > > Thats about as much detailed information as I have to help. egg smell is often attributed to a dying cat |