Yes, Viper did ECU and TCU.
I'll maybe contact him and see what he thinks.
See if i can find the ECU/TCU torque request and log it tonight.
To be continued....
Anyone spot the problem?
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Frustratedracer
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Frustratedracer
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Re: Anyone spot the problem?
Shopp, just had a trawl through VCDS and the only thing i can see is group 122 which i have done in the log marked torque.
Is the line pressure increased in tiptro, do you know?
Just wondering if it is a valve body issue?
Is the line pressure increased in tiptro, do you know?
Just wondering if it is a valve body issue?
Re: Anyone spot the problem?
Pressure is constant, I believe. I'll have a look in my VCDS see if I can find it.
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."
Re: Anyone spot the problem?
Yeah, it looks like group 122:
Torque Reduct.: Engine interv./No engine interv.
Torque Reduct.: Engine interv./No engine interv.
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."
Re: Anyone spot the problem?
Group 9 in the TCU measuring blocks might be interesting, too.
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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Frustratedracer
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Re: Anyone spot the problem?
OK, another day; another set of logs.
Thought i would do a log in tiptro to see what the difference is, and it is.... that the TC is closed.
Does this indicate that the TC is my problem i wonder?
Thought i would do a log in tiptro to see what the difference is, and it is.... that the TC is closed.
Does this indicate that the TC is my problem i wonder?
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- Tiptronic.xls
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- Torque reduction.xls
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Frustratedracer
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Re: Anyone spot the problem?
Does the MAP sensor have any influence on boost or is it fuelling only?
Re: Anyone spot the problem?
The RS6 doesn't use a MAP sensor for fuelling.
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."
Re: Anyone spot the problem?
It still looks like the hesitation is caused by the TCU asking for torque reduction. It would be interesting to see what happens with a different TCU. How far are you from Sweegie? I think he said he had a spare one.
Did you talk to Rich at Viper?
Did you talk to Rich at Viper?
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."
Re: Anyone spot the problem?
I will try to reproduce the same issue with my MTM TCU. Might be interesting to compare.
How are you doing it? Trying to stay in 4th using partial throttle?
How are you doing it? Trying to stay in 4th using partial throttle?
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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Frustratedracer
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Re: Anyone spot the problem?
Shopp,
Yes, spoke to Rich, he hadn't heard of any fault like this before but suggested i could go back to standard maps and see what happens.
I sent him my logs to look at - waiting on him getting back to me.
What does the MAP sensor do on our cars?
Drive along in D, get car up to 40mph in 4th (should be about 1800rpm).
Push throttle down firmly as if you were passing something but not enough to change down to third and keep it there even applying a little more throttle to keep the engine/box under load.
I will see if i can get in contact with Sweegie, not sure where he is these days.
Yes, spoke to Rich, he hadn't heard of any fault like this before but suggested i could go back to standard maps and see what happens.
I sent him my logs to look at - waiting on him getting back to me.
What does the MAP sensor do on our cars?
Drive along in D, get car up to 40mph in 4th (should be about 1800rpm).
Push throttle down firmly as if you were passing something but not enough to change down to third and keep it there even applying a little more throttle to keep the engine/box under load.
I will see if i can get in contact with Sweegie, not sure where he is these days.
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Frustratedracer
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Re: Anyone spot the problem?
You will know when it is happening, it is not subtle and it's feckin' annoying!
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Frustratedracer
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Re: Anyone spot the problem?
Really sorry to resurrect this old post, but now in lockdown and its an opportunity to bring the old girl out of a 2 year hibernation and attend to this issue.
Either that or start cutting the grass with a pair of nail scissors to kill some time!
If anyone has the time and patience to read through this thread and shed some light on this problem it would be HUGELY appreciated.
In the meantime, stay safe and see you on the other side.
Either that or start cutting the grass with a pair of nail scissors to kill some time!
If anyone has the time and patience to read through this thread and shed some light on this problem it would be HUGELY appreciated.
In the meantime, stay safe and see you on the other side.
Re: Anyone spot the problem?
I read through it all again and I don't have any other wisdom to offer than to figure out why the TCU is asking for torque reduction. Could be a bad boost pressure sensor or a dodgy N75.
Did you try putting the map back to standard? If it doesn't do it any more than that might suggest something going funny with the torque calculations getting sent to the TCU.
Did you try putting the map back to standard? If it doesn't do it any more than that might suggest something going funny with the torque calculations getting sent to the TCU.
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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Frustratedracer
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Re: Anyone spot the problem?
Cheers Shopp,
I haven't returned to standard yet, Rich has gone very quiet on me despite a few emails and i thought i would see if anyone had any divine inspiration before finding someone else to return the maps to standard.
Boost pressure sensor is at the front of the inlet manifold?
I haven't returned to standard yet, Rich has gone very quiet on me despite a few emails and i thought i would see if anyone had any divine inspiration before finding someone else to return the maps to standard.
Boost pressure sensor is at the front of the inlet manifold?
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