Lumpy Auto change

Bindinbear · 30-06-11, 05:36 PM

My Coupe 2.3 auto changes quite violently, more so obvious when warm. Took it to a specialist and said the fact that its positive doesn't suggest a box' fault more ECU. So, I plugged in my kit and I'm getting two faults:-

00518- throttle position sensor (G69) sporadic signal outside tolerance and

0299- transmission range program switch (E122) spoardic- short.
is this the throttle position sensor?

If this is the sensor, it doesn't seem dirty??
Should i change the gearbox oil too?

I presume the second fault is something to do with the stick itself?

I don't know if its relevant but the temp gauge isn't working at the mo?

advice appreciated, thanks
Bren

yeti · 30-06-11, 05:42 PM

Check your gearbox oil level when warm (and obviously engine turned off), it could be too full. My Toyboatas was over full when I bought it, making the change lumpy when warm. Was easy enough to remedy with an old fairy liquid bottle and a length of hose.

Bindinbear · 30-06-11, 07:10 PM

Quote:

Originally Posted by yeti

Check your gearbox oil level when warm (and obviously engine turned off), it could be too full. My Toyboatas was over full when I bought it, making the change lumpy when warm. Was easy enough to remedy with an old fairy liquid bottle and a length of hose.

Cheers, I'll have to check it. The auto box guy said that it is computer controlled as it has sport mode etc, so surely these issues can't be helping logged on the ECU?

yeti · 30-06-11, 07:21 PM

Another user's told me it should be checked with the engine on, so I don't know, that's just what caused a problem on an old Toyota.

SteveCat · 30-06-11, 10:10 PM

Yes Bren,Yeti and I have been chatting about this via the PM so as not to confuse you mate!lol

I remembered after much brain wrackage! You do check the ATF level on these with the engine running.Give her a good run,then check it.It's always much more accurate doing a hot check on Auto boxes.

Steve

MadderThanMax · 01-07-11, 10:45 AM

GET THE AUTOBOX SERVICED!!

Audi autos were notoriously weak doing only 70 - 80k approx before going **phut** and a way to stop this is to have it serviced regularly say once every 24months or less pendant on mileage of course. Alot of the time its down to dirt in the valve body inside the box (the last time I priced a repair it was about £400 notes!) and clogged filters - how would your engine respond if the filters were choked?? not very well I would imagine hence the auto needs equal amounts of TLC!

Some dealers say that the autobox is a "sealed for life" box - basically meaning that they can't be RSed doing the change. My dads Bora was alledgedly one of them with the usual no dipstick - taken to a specialist and, new filter & oil and she was as smooth as silk again! So be warned.. If you are going down this path to look at reviews if you can of the place you take it to, ask to see around the workshop, there should be what's called a "clean room" and it is literally just that if its dirty and grubby walk away!
I use Mackies up here in Glasgow and I wouldn't go passed them, the are expensive but they are top dollar in my opinion, proud to show their workshop, qualifications, traing course attended and all that good stuff! totall worth the money!

One thing to always remember: Oil Degrades overtime and use, so no matter what you are told about how long it will last etc it always degrades therefore becoming less efficient. Less Efficient = Less cooling, lubrication and higher wear!

"Here endeth the lesshon!" (Sean Connery/ Untouchables)

MadderThanMax · 01-07-11, 10:47 AM

P.S Auto box fluid is not Brown - Its red and should be red! Smell it, if it smells "Almondy" walk away or be prepared for a large bill coming your way.

MadderThanMax · 01-07-11, 01:16 PM

Quote:

Originally Posted by Bindinbear

My Coupe 2.3 auto changes quite violently, more so obvious when warm. Took it to a specialist and said the fact that its positive doesn't suggest a box' fault more ECU. So, I plugged in my kit and I'm getting two faults:-

00518- throttle position sensor (G69) sporadic signal outside tolerance and

0299- transmission range program switch (E122) spoardic- short.
is this the throttle position sensor?

If this is the sensor, it doesn't seem dirty??
Should i change the gearbox oil too?

I presume the second fault is something to do with the stick itself?

I don't know if its relevant but the temp gauge isn't working at the mo?

advice appreciated, thanks
Bren

nope! That's just a bullet connector connecting two wires - moove the camera to the right slightly and take a not so close picture of the throttle body iteself..

30-06-11, 05:42 PM	#2
yeti Senior Member Classic Audi Club Member Join Date: Oct 2009 Location: Derby Posts: 1,166	Check your gearbox oil level when warm (and obviously engine turned off), it could be too full. My Toyboatas was over full when I bought it, making the change lumpy when warm. Was easy enough to remedy with an old fairy liquid bottle and a length of hose. __________________ 1990 Coupe Quattro (WTF did I buy that for?) Half a 1983 Coupe FI (long term parts shelf) 2003 Cors-arrrgh More Polos that you'd ever believe No time, no money, all the wrong tools and a workshop that's too far away

30-06-11, 07:21 PM	#4
yeti Senior Member Classic Audi Club Member Join Date: Oct 2009 Location: Derby Posts: 1,166	Another user's told me it should be checked with the engine on, so I don't know, that's just what caused a problem on an old Toyota. __________________ 1990 Coupe Quattro (WTF did I buy that for?) Half a 1983 Coupe FI (long term parts shelf) 2003 Cors-arrrgh More Polos that you'd ever believe No time, no money, all the wrong tools and a workshop that's too far away

30-06-11, 10:10 PM	#5
SteveCat 4 ring whore! Classic Audi Club Member Join Date: Sep 2007 Posts: 3,523	. Yes Bren,Yeti and I have been chatting about this via the PM so as not to confuse you mate!lol I remembered after much brain wrackage! You do check the ATF level on these with the engine running.Give her a good run,then check it.It's always much more accurate doing a hot check on Auto boxes. Steve __________________ Mercedes E220 Sportline Coupe

01-07-11, 10:45 AM	#6
MadderThanMax Grown up member Join Date: Oct 2010 Posts: 254	GET THE AUTOBOX SERVICED!! Audi autos were notoriously weak doing only 70 - 80k approx before going phut and a way to stop this is to have it serviced regularly say once every 24months or less pendant on mileage of course. Alot of the time its down to dirt in the valve body inside the box (the last time I priced a repair it was about £400 notes!) and clogged filters - how would your engine respond if the filters were choked?? not very well I would imagine hence the auto needs equal amounts of TLC! Some dealers say that the autobox is a "sealed for life" box - basically meaning that they can't be RSed doing the change. My dads Bora was alledgedly one of them with the usual no dipstick - taken to a specialist and, new filter & oil and she was as smooth as silk again! So be warned.. If you are going down this path to look at reviews if you can of the place you take it to, ask to see around the workshop, there should be what's called a "clean room" and it is literally just that if its dirty and grubby walk away! I use Mackies up here in Glasgow and I wouldn't go passed them, the are expensive but they are top dollar in my opinion, proud to show their workshop, qualifications, traing course attended and all that good stuff! totall worth the money! One thing to always remember: Oil Degrades overtime and use, so no matter what you are told about how long it will last etc it always degrades therefore becoming less efficient. Less Efficient = Less cooling, lubrication and higher wear! "Here endeth the lesshon!" (Sean Connery/ Untouchables)

01-07-11, 10:47 AM	#7
MadderThanMax Grown up member Join Date: Oct 2010 Posts: 254	P.S Auto box fluid is not Brown - Its red and should be red! Smell it, if it smells "Almondy" walk away or be prepared for a large bill coming your way.