Read this table as well.....love the first one.....D'ooh.....
Cylinder misfiring rate
Possible cause
Fault remedy
Greater than 0
Fuel level too low
- Check fuel level and fill tank if necessary
Spark plug faulty
Ignition coil/output stage faulty
- Check ignition coils with output stages Page 28-4
Injector faulty
- Check injectors Page 24-68
Fuel pressure too low
- Check fuel system pressure Page 24-61
Crankcase breather leaking
- Check crankcase breather hoses for firm fit and leaks
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
The car is now in the shop, will update as I find out more info. He believes it is all electrical, and may be just time for new Coil Packs. They are $30.00 each, so not too bad. ECS has them on sale. LOL. At least that is NOT an RS6 specific part, appears to be same part use in about every Audi engine.
"New Ignition Coil for 1.8T Engines (APH AWD AWV AWW ATW ATC AMU) for 98-01 Beetle, 99-01 Golf, 99-01 Jetta, 98-01 Passat, 99-02 Audi A4, 99-02 Audi TT. Also fits V8 Engines (AWM BBD) for 98-04 Audi A6, 00-03 Audi A8/S8 and 03-04 Audi RS6 Quattro."
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
Coils are ok, and plugs....
Looks like a problem with Cylinder 1, as of yet unknown.
Reported that cylinder leak is "Good at only 9%."
Not sure what the Leak Spec isI am a bit concerned! This could be then end...
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
That is a leak down value. You are good
https://en.m.wikipedia.org/wiki/Leak-down_tester
Originally Posted by Aronis
Coils are ok, and plugs....
Looks like a problem with Cylinder 1, as of yet unknown.
Reported that cylinder leak is "Good at only 9%."
Not sure what the Leak Spec is
I've seen this first hand.
It's usually an indication of fuel filter or pump(s) issues.
2012 Q7 TDI S-Line - 2010 GTI - 2007 A3 3.2 S-Line - 2003 RS6
2001 Honda S2000 - 1977 Honda CBR 750-F2 - 1965 GMC 1500 WideSide
Hang in there Mike
at least with the good leak down number your cylinder integrity is good.
I'm about to buy a Misano RS6 and or a Stage 3 Imola S4 avant. We always need that next project car.
Thank you for the info on leak down. I did not take a moment to search myself since I was post call and needed A sleep Down test. LOL...
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
I still think timing is your problem (phase position to far from 0 in oposit direction).
Andriy
Update....
Vacuum pump for brakes tested out ok.
Smoke Test done, no leaks found.
The misfires are related to either the Cam tensioner or the Cam Chain.
He put the car in service position, checked the timing belt and all components, all is correct there, put back to gather did more testing.
The right side of the engine had +12 phase and the left side (driver's side) -7. The spec's I believe are -6 to +6, we discussed that briefly.
Next step, back to service position, and drop engine a few inches to allow access to that F-ing coolant pipe to allow cam the be services on passenger side.
We are replacing the cam chains (both sides) and most likely the cam tensioner guides. The Cam Tensioner's test out electronically and are actuating. When he stripped the engine down for repair of the oil leak, he checked the cam alignment and all the marks were properly aligned on both sides. So I am very curious to see what the actual problem is. He can hear some chain noise on the passenger side so I bet the cam tensioner guides are broken. I doubt the Chain would all of a sudden be stretched! There were no misfires for 140,000 miles on those parts.Who knows. I'll be it the cam tensioner, stupid plastic parts! LOL.
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
I've thought about the quality of some of those aftermarket pads. $10 for a set from China, you never know if there's a flaw in the pour/mold or how good the resin is. Part of why I replaced the whole tensioner and guides with OEM as one complete unit. Didn't want to spend the $2k to get back in there and replace, mostly due to passenger side, again after a few years. Hope you find the fix!
We are replacing the cam chains (both sides) and most likely the cam tensioner guides. The Cam Tensioner's test out electronically and are actuating. When he stripped the engine down for repair of the oil leak, he checked the cam alignment and all the marks were properly aligned on both sides. So I am very curious to see what the actual problem is. He can hear some chain noise on the passenger side so I bet the cam tensioner guides are broken. I doubt the Chain would all of a sudden be stretched! There were no misfires for 140,000 miles on those parts.
Mike
Ace/Edge TC - Tozo Trans - MTM TCU - REVO/ME7 tune - Wagner IC's w/ Venair Hoses - Aux Radiator delete - Hotchkis Sways - Hawk HPS Pads - Koni Sport Struts - Scroll KO4 Turbos - Devil's Own WM - 421whp/452wtq on Mustang Dyno - http://www.audirssix.com
The cam tensioner was replaced with OEM Audi part a few years ago...they are $800 each.....the aftermarket ones are $200 or so..supposedly the same unit without the Audi logo. It's too bad the warrantee no such parts does not include the labor charges.
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
This only means that you exhaust cams are in time. Also, did you get any word on how easily the cam lock bar installed onto the cams? If it doesn't go on with nearly any effort, then I suggest popping the sprockets and re-timing it.
I know it's a PITA, but sometimes getting the timing right is an iterative process. Those tensioner adjustment numbers in block 093 should be all zeros.
2012 Q7 TDI S-Line - 2010 GTI - 2007 A3 3.2 S-Line - 2003 RS6
2001 Honda S2000 - 1977 Honda CBR 750-F2 - 1965 GMC 1500 WideSide
yes, the block 93's were not zero. He is taking the valve covers off and changing timing chains and probably the cam tensioners. Trying to avoid that cost.
He did look at the aligning marks on both the intake and exhaust cam gears. If you take the valve cover off you can see them easily. So I would love to be there when the covers are taken off so I can see first hand where the markers are LOL.....
Mike
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
How does that part look? D'ooh.....
'18 BMW M5, '19 Porsche Boxster GTS
(prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,
Looks like CCT was original.
Andriy
Those were never changed.
Doh
no no way could those have been inspected when you just had the major service done
For my benefit, lack of knowledge, that is a split down the middle (busted) "cam chain tensioner gasket"?
RS6 #1 904959, Daytona, Silver, tons of "stuff," went through puddle, dead engine, end of #1 for me, rebuilt by local enthusiast and thriving.
RS6 #2 904568, Avus, Ebony, no stuff, stock minus RNS-E.
I second this, that piece looks damn old. Who supposedly swapped out your cam adjusters last year? Maybe they were used or not OEM? Something seems amiss...
At least you found the issue. You can get the pads most anywhere, some sources seem closer to OEM than others.
Ace/Edge TC - Tozo Trans - MTM TCU - REVO/ME7 tune - Wagner IC's w/ Venair Hoses - Aux Radiator delete - Hotchkis Sways - Hawk HPS Pads - Koni Sport Struts - Scroll KO4 Turbos - Devil's Own WM - 421whp/452wtq on Mustang Dyno - http://www.audirssix.com
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