Running rich - HELP PLEASE!!! - Page 2

leggy · 21-02-15, 01:33 PM

Quote:

Originally Posted by John.

see Marks post above ref air flow meter.
High tick-over suggests something amiss regards air/fueling?
Engine OFF, take a plug out......if it's as black as the hell of hells then it's running rich or you're burning something you shouldn't be.

Quote:

Originally Posted by John.

Assuming your's is the same then it's the box of electrics on top of the air filter box.

Quote:

Originally Posted by John.

The lamda sensor is checkable with a voltmeter, there'll be a you-tube vid somewhere.

Thanks John

John. · 21-02-15, 01:41 PM

https://www.youtube.com/watch?v=7uqmYkl7t0c

leggy · 21-02-15, 01:58 PM

Oh yeh, something worth mentioning, sorry forgot!

When I had my MOT last year they noted this in the advisory section: "rear fuel pipe slightly damaged"; not noted the year before!
Now the only thing that I can think of that may have caused this slight damage was a ramp (to prevent both loss of water pressure and damage to a huge water pipe laid across the road) that the fire services had used as a result of a major fire on the industrial estate where I work a few months before the MOT.

So is it possible also that this slight damage may be causing the smell/fumes?

leggy · 21-02-15, 02:02 PM

Quote:

Originally Posted by John.

https://www.youtube.com/watch?v=7uqmYkl7t0c

Bookmarked! Thanks John
(PS does that guy look half cut to you?

)

jamiecoysh · 21-02-15, 02:06 PM

hi idle may be a vacuum related issue, increased un-metered airflow might cause higher fuel usage. I'd be checking for possible split/perished hoses and the resistance across the coolant temp sender

missfire · 21-02-15, 03:35 PM

Buy a Kia!

Seriously, unless you have all the time in the world, this is just the beginning.

Crushed flat fuel line or leaking would be a bit scary, but won't cause rich mixture or black smoke, no.

The ramp that could have caused the 'slight damage' to your hose could have also smashed your cat, if it has one. Duff cats cause nice rich smells.

leggy · 21-02-15, 08:29 PM

You and your darn Kia's missfire, is that what you drive?

Trust me, I'll make time for my car above all else; I'm even looking in to finding a lockup atm so that I can work on it when it's yuck outside in view of it showing its age more and more of late...and let me just say this, even if/when I can afford another car, I'm keeping my Audi80, so ner ner ner-ner ner

I'll get the cat checked asap, just seems odd that the smell/fumes have been more noticeable since the fire/ramp incident, so thanks for the heads up.

leggy · 21-02-15, 08:42 PM

Okay John

I've checked two of the plugs, fourth and then the second from distributor, both looked okay to both me and my friend, but I took photos anyway so that you can see for yourself:

[EDIT] Yay!, success, first piccies that I've posted in a thread!

Didn't get around to checking the air flow meter, and neither of us have any carb cleaner anyway, but it's on the shopping list and we're going to Maplin's tm (Halfords is next door!). [Thinking] That said, it might be best to get the Cat checked out first.

Yep, that would seem to make more sense, right?

leggy · 23-02-15, 08:04 PM

Okay, so I've now bought some carb cleaner...
I'm assuming that I need to disconnect the battery before using it on the air flow meter, but not sure if I need to remove said afm prior to using the carb cleaner or whether I can use the carb cleaner whilst the afm is still on the car (cover removed obviously!)...?
Furthermore, I note that the carb cleaner is a solvent, as in it disolves the dirt upon contact, but is it best to just spray it on and leave it, or to spray it on and then use a small brush to remove the remants of spray and dirt please?

I'll be checking the cat for damage asap; company in the unit next door to where I work have said that I can use their ramp, just need to wait for them to finish up some work that they're doing on a porsche, but they've said this could be as early as tm.

Hanuman · 23-02-15, 08:32 PM

Spray it. It will dissolve the oily crud a bit. Spray it again.
No need to be scrubbing; be fairly gentle.

You can also use the cleaner on the plugs, if you are feeling industrious.

It's likely similar in way to my 100, so I would disconnect the hose and lift the top of the filter box off with the flow sensor gubbins attached, and spray the cleaner.

21-02-15, 08:29 PM	#17
leggy Senior Member Join Date: Nov 2014 Posts: 1,650	You and your darn Kia's missfire, is that what you drive? Trust me, I'll make time for my car above all else; I'm even looking in to finding a lockup atm so that I can work on it when it's yuck outside in view of it showing its age more and more of late...and let me just say this, even if/when I can afford another car, I'm keeping my Audi80, so ner ner ner-ner ner I'll get the cat checked asap, just seems odd that the smell/fumes have been more noticeable since the fire/ramp incident, so thanks for the heads up. Last edited by leggy; 21-02-15 at 08:59 PM.

21-02-15, 08:42 PM	#18
leggy Senior Member Join Date: Nov 2014 Posts: 1,650	Okay John I've checked two of the plugs, fourth and then the second from distributor, both looked okay to both me and my friend, but I took photos anyway so that you can see for yourself: [EDIT] Yay!, success, first piccies that I've posted in a thread! Didn't get around to checking the air flow meter, and neither of us have any carb cleaner anyway, but it's on the shopping list and we're going to Maplin's tm (Halfords is next door!). [Thinking] That said, it might be best to get the Cat checked out first. Yep, that would seem to make more sense, right? Last edited by leggy; 22-03-15 at 07:44 PM.

23-02-15, 08:32 PM	#20
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,025	Spray it. It will dissolve the oily crud a bit. Spray it again. No need to be scrubbing; be fairly gentle. You can also use the cleaner on the plugs, if you are feeling industrious. It's likely similar in way to my 100, so I would disconnect the hose and lift the top of the filter box off with the flow sensor gubbins attached, and spray the cleaner. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor Last edited by Hanuman; 23-02-15 at 08:36 PM.

21-02-15, 01:41 PM	#12
John. 4 ring whore! Classic Audi Club Member Join Date: Mar 2011 Location: Scottish Borders. Posts: 7,540	https://www.youtube.com/watch?v=7uqmYkl7t0c

21-02-15, 01:58 PM	#13
leggy Senior Member Join Date: Nov 2014 Posts: 1,650	Oh yeh, something worth mentioning, sorry forgot! When I had my MOT last year they noted this in the advisory section: "rear fuel pipe slightly damaged"; not noted the year before! Now the only thing that I can think of that may have caused this slight damage was a ramp (to prevent both loss of water pressure and damage to a huge water pipe laid across the road) that the fire services had used as a result of a major fire on the industrial estate where I work a few months before the MOT. So is it possible also that this slight damage may be causing the smell/fumes?

21-02-15, 02:06 PM	#15
jamiecoysh Grown up member Join Date: May 2013 Location: Torquay, Devon Posts: 119	hi idle may be a vacuum related issue, increased un-metered airflow might cause higher fuel usage. I'd be checking for possible split/perished hoses and the resistance across the coolant temp sender

21-02-15, 03:35 PM	#16
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,156	Buy a Kia! Seriously, unless you have all the time in the world, this is just the beginning. Crushed flat fuel line or leaking would be a bit scary, but won't cause rich mixture or black smoke, no. The ramp that could have caused the 'slight damage' to your hose could have also smashed your cat, if it has one. Duff cats cause nice rich smells.

23-02-15, 08:04 PM	#19
leggy Senior Member Join Date: Nov 2014 Posts: 1,650	Okay, so I've now bought some carb cleaner... I'm assuming that I need to disconnect the battery before using it on the air flow meter, but not sure if I need to remove said afm prior to using the carb cleaner or whether I can use the carb cleaner whilst the afm is still on the car (cover removed obviously!)...? Furthermore, I note that the carb cleaner is a solvent, as in it disolves the dirt upon contact, but is it best to just spray it on and leave it, or to spray it on and then use a small brush to remove the remants of spray and dirt please? I'll be checking the cat for damage asap; company in the unit next door to where I work have said that I can use their ramp, just need to wait for them to finish up some work that they're doing on a porsche, but they've said this could be as early as tm.