Address 01: Engine Labels: 077-907-558-BCY.lbl
Control Module Part Number: 4D1 907 558 F
Component and/or Version: 4.2l V8/5VT G01 0001
Software Coding: 0010752
Work Shop Code: WSC 02195 785 00200
4 Faults Found:
18070 - Coolant Fan Control 2
P1662 - 002 - Short to Ground
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 -
16691 - Cylinder 7
P0307 - 001 - Misfire Detected
16814 - Catalyst System; Bank 2
P0430 - 001 - Efficiency Below Threshold
Readiness: 0000 0000
Possible Issue - New Logs Added - Update 25/3/12
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Ryan_Pestell
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Re: Possible Issue
Daytona RS6+ Sold 
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
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Ryan_Pestell
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Re: Possible Issue
attached pdf of logs from WOT runs
- Attachments
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- LOG-01-002-003-015.pdf
- (1004.33 KiB) Downloaded 65 times
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
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Ryan_Pestell
- 3rd Gear
- Posts: 455
- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
also attached this. torque log
only ran in 2nd and 3rd gear, but still way below what i thought it would be
only ran in 2nd and 3rd gear, but still way below what i thought it would be
- Attachments
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- torque log.pdf
- (46.81 KiB) Downloaded 62 times
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
Re: Possible Issue
You didn't log group 115 which is generally the most interesting one on the RS6. 
Couple of things. You should post the xls files if possible - pure numbers are hard to see trends in. Also, your Vagcom is sampling at a really low rate on the torque logs. Pretty much only once a second. Not so bad for the other logs. Next time, you can use the turbo button to increase sampling rate.
Anyway, if your plus is standard then the torque values you are getting are spot on.
Also your MAF values look fine.
It looks like the engine is detecting lots of misfires from the fault codes. Did it do any misfiring during those logs? It's normal that the misfiring detection goes on and off. It turns off the detection when misfires are more likely like on overrun.
Anyway, it doesn't look like your misfires are being caused mixture issues on the face of it. Could be low fuel pressure I suppose, but I think it's more likely that it's your plugs. When's the last time they were changed and what did you put in? If you don't know when they were last changed then you should change them. See the FAQ for info on plugs.
Check also that all the crankcase breather hoses are intact and connected properly and have a look around for perished vacuum hoses, too, although I don't think this is your problem in this case.
Also, log group 001 so we can see your mixture corrections. Then drive and log groups 15, 16 and 17 so we can see which cylinders are misfiring. It it's always 7 and another one or 2 then it might be coil packs.
Need to get this sorted before it poisons your cats.
Place to start is with the plugs, though, IMO.
Couple of things. You should post the xls files if possible - pure numbers are hard to see trends in. Also, your Vagcom is sampling at a really low rate on the torque logs. Pretty much only once a second. Not so bad for the other logs. Next time, you can use the turbo button to increase sampling rate.
Anyway, if your plus is standard then the torque values you are getting are spot on.
Also your MAF values look fine.
It looks like the engine is detecting lots of misfires from the fault codes. Did it do any misfiring during those logs? It's normal that the misfiring detection goes on and off. It turns off the detection when misfires are more likely like on overrun.
Anyway, it doesn't look like your misfires are being caused mixture issues on the face of it. Could be low fuel pressure I suppose, but I think it's more likely that it's your plugs. When's the last time they were changed and what did you put in? If you don't know when they were last changed then you should change them. See the FAQ for info on plugs.
Check also that all the crankcase breather hoses are intact and connected properly and have a look around for perished vacuum hoses, too, although I don't think this is your problem in this case.
Also, log group 001 so we can see your mixture corrections. Then drive and log groups 15, 16 and 17 so we can see which cylinders are misfiring. It it's always 7 and another one or 2 then it might be coil packs.
Need to get this sorted before it poisons your cats.
Place to start is with the plugs, though, IMO.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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Ryan_Pestell
- 3rd Gear
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- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
i logged 115, but like i said it was turning on and off all the time, like under hard accelearion some times it would turn off ?
the XML files dont copy and paste here well, and the site wont me upload and xml?
yes it did the missfire/slight hestation whilst doing those logs.
dont know on the plug scenerio will look at QST recipets.
the XML files dont copy and paste here well, and the site wont me upload and xml?
yes it did the missfire/slight hestation whilst doing those logs.
dont know on the plug scenerio will look at QST recipets.
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
Re: Possible Issue
Not 15, 115.
Not xml, XLS.
Not xml, XLS.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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Ryan_Pestell
- 3rd Gear
- Posts: 455
- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
sorry its early, lol, will sort it now
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
Re: Possible Issue
Example xls file:
- Attachments
-
- sample.xls
- (20.5 KiB) Downloaded 49 times
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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Ryan_Pestell
- 3rd Gear
- Posts: 455
- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
here:
- Attachments
-
- log.xls
- (127.5 KiB) Downloaded 46 times
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
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Ryan_Pestell
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- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
right bought car and laptop today to work.
what do i need to log.
??
what do i need to log.
??
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
Re: Possible Issue
15, 16, 17
1, 32, 115
Or you can use advanced measuring blocks to log them all at the same time. Don't forget to use the turbo button.
1, 32, 115
Or you can use advanced measuring blocks to log them all at the same time. Don't forget to use the turbo button.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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Ryan_Pestell
- 3rd Gear
- Posts: 455
- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
ok will use advanced and do them all.
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
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Ryan_Pestell
- 3rd Gear
- Posts: 455
- Joined: Mon Oct 24, 2011 7:44 am
Re: Possible Issue
new logs
- Attachments
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- LOG-01-015-016-017.xls
- (194.5 KiB) Downloaded 51 times
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- LOG-01-115-032-001.xls
- (195.5 KiB) Downloaded 58 times
Daytona RS6+ Sold
Now Building a 500HP Lotus Exige
Now Building a 500HP Lotus Exige
Re: Possible Issue - New Logs Added
Interesting logs. Lots of misfires on cylinder 7. I would swap the coil pack with another one to see if the problem moves to that cylinder instead.
Lambdas look good, but you car isn't making specified boost. Your ECU is asking for 2100 max boost which is quite a lot, but your car is only making about 1850 max. Not sure what would be causing this. If it was a big boost leak, I would expect to see wonky lambdas, although I did notice that you had just reset the DTCs (and so zeroed the lambda values) so maybe the car hasn't finished adjusting yet.
It could mean a bad DV preventing full boost. I reckon you're down quite a lot on power, as well as your misifiring problem. Deal with the misifre first. Swap that coil pack with another one. While you've got all that apart, you might as well put some new plugs in. Are the ones that are in NGK PFR7Q? If not then you are asking for trouble.
Lambdas look good, but you car isn't making specified boost. Your ECU is asking for 2100 max boost which is quite a lot, but your car is only making about 1850 max. Not sure what would be causing this. If it was a big boost leak, I would expect to see wonky lambdas, although I did notice that you had just reset the DTCs (and so zeroed the lambda values) so maybe the car hasn't finished adjusting yet.
It could mean a bad DV preventing full boost. I reckon you're down quite a lot on power, as well as your misifiring problem. Deal with the misifre first. Swap that coil pack with another one. While you've got all that apart, you might as well put some new plugs in. Are the ones that are in NGK PFR7Q? If not then you are asking for trouble.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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