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 Posted: Sun Jun 16, 2013 6:00 am |
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Joined: Mar 15, 2012
Posts: 327
Trade Rating: 0
Location: Essex
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so,im now looking to get to the bottom of the last of the niggles with the gti, had few options come up but wondered which way you guys would sway with the following:
lambda 1 voltage.....all over the place between 0.100 and briefly flickers to 0.600mv
lambda 2 voltage... 0.600mv fluctuating slightly
longterm fuel trim 14.8
short term fuel trim -28
all taken at idle relatively cold but at low idle 850ish.
has obd p0170 (fuel trim bank 1 lean) and i've been blaming ehaust mani leak but now i've seen its actually lambda 1 that seems to be giving the lean running code,im thinking just a plain old pre-cat lambda gone? not happy because the thing did not want to come out last time i tried.
think im on the right lines?
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| Joined the GTi massive 10/1/13
Goodbye lairy Pugani (quicksilver 1.4)  | |
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Posted: Wed Jun 19, 2013 12:41 pm |
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Joined: Aug 31, 2012
Posts: 24
Trade Rating: 0
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What program did you use to get the lambda values?
I haven't been able to get much data out of my PP2000.
Emission system = no connection (lambda maybe under this?)
Ignition system = no connection
Fuel injection, air intake, driving all have almost every sensor just "???".
Even if engine speed and coolant temp shows on other categories, they are just shown as "???" on others.
Maybe faulty reader or faulty install or not compatible with win7? Argh.
To answer your question, seems like a dodgy lambda to me.
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Posted: Tue Jun 25, 2013 5:12 pm |
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Joined: Mar 15, 2012
Posts: 327
Trade Rating: 0
Location: Essex
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its a handheld device,gives code and description,along with live data aswell. i thought lambda too,mate gonna whack it up on ramps see if he has any more luck finding a leak than i did first as it would make sense that its blowing but exhaust and centre pipe are def sealed up tight,and the leak would cause erratic lambda read out going lean/rich as it compensates for it
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| Joined the GTi massive 10/1/13
Goodbye lairy Pugani (quicksilver 1.4) | |
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Posted: Tue Jun 25, 2013 6:27 pm |
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Joined: Jan 15, 2013
Posts: 244
Trade Rating: 0
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Exhaust mani leak would still have the lambdas showing these off readings...If there is a manifold leak, that needs sorting before you will get true readings anyway!!
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Posted: Sat Jun 29, 2013 1:26 pm |
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Joined: Mar 15, 2012
Posts: 327
Trade Rating: 0
Location: Essex
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| eddie206 wrote: |
| Exhaust mani leak would still have the lambdas showing these off readings...If there is a manifold leak, that needs sorting before you will get true readings anyway!! |
this is what i was saying lol,mate completely forgot so hopefully going in next week,if its a crack or sumat it be getting welded up. hopefully it that simplez
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| Joined the GTi massive 10/1/13
Goodbye lairy Pugani (quicksilver 1.4) | |
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Posted: Fri Jul 26, 2013 1:08 pm |
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Joined: Mar 15, 2012
Posts: 327
Trade Rating: 0
Location: Essex
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new mani to flex pipe clamp fitted,no eml and MPG has increased 
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| Joined the GTi massive 10/1/13
Goodbye lairy Pugani (quicksilver 1.4) | |
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Posted: Wed Sep 04, 2013 1:57 pm |
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Joined: Sep 04, 2013
Posts: 16
Trade Rating: 0
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pp200 dont run on win 7, u need to use virtualbox on win 7 and load pp2000 on to that
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Posted: Wed Sep 04, 2013 2:28 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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Note: Lambda should fluctuate quite quickly between about 0.1V and 0.7V. A steady lambda is wrong!
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Wed Sep 04, 2013 3:33 pm |
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Joined: Feb 07, 2010
Posts: 2718
Trade Rating: +6
Location: UK
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Think you should read how lambdas work. There's nothing wrong with them.
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