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Incorrect 4th gear ratio

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Old Dec 22, 2008 | 12:00 AM
  #1  
gmatov's Avatar
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Default Incorrect 4th gear ratio

What in the heck can that mean?

I bought the HF code reader, cheap enough, that it would not be that much a waste if it could not read my Audi, 97 A6 2.8. ONLY 2 faults thrown up, "Misfire on Cylinder 1" and the above, "Incorrect 4th gear ratio".

How inell can you have an incorrect ratio? It's a tranny.

I don't remember the number, if it even throws numbers. Display read out the term above, as it did with the misfire, no need to go to the numerical listing.

I've mentioned before that with JUST those 2 faults thrown, this must be a damned well operating machine. Except for the buck and fart at times, from misfires, it runs pretty well.

Bought a replacement coil pack to try to get rid of the misfire. Have yet to have it installed.

From another thread, I was under the impression that the coils are three individual units. I have not looked closely at them, but have 2 3 conductor plugs from it. I assume one per coil side, and complete the circuit through ground. Do the wires have spade connectors on the coil end? You CAN replace one coil at a time? Or are they hard wired leads?

The "buck and fart" was bad, last night. Pulled onto a highway from an entry ramp, plenty of room, and the car almost could not get out of it's own way. Buck and fart for about an eigth mile. Paper on Saturday has an "Auto Expert" who said that this could be bad wiper in TPS. Dead spot that says the car is basically in idle, shuts off injectors.

I really don't know. Once upon a time, people came to me dor Audi instruction. Now, I am at a loss.

I DO love the car, warts and all. I would NEVER deal with the Co. that sold it to me, again, but after I got the probs that it came with fixed, it is still a very nice car to drive.

Cheers,

George
 
Old Dec 22, 2008 | 10:01 AM
  #2  
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"Incorrect 4th gear ratio" is the code I'd worry about!

On my friend's S8 that was the code that led to transmission replacement ($$$$$$).

The generic OBD2 TDC are not enough to diagnose - get the VAG codes red!.
Then do search on the forum as there are many discussions here.

Check your fuses, some solutions suggest disconnecting the battery...


Are you with tiiptronic? Try using sport, manual modes, clear the codes -drive then ckeck again.

(basically the generic reader is not the one you need).
 
Old Feb 8, 2009 | 01:33 AM
  #3  
gmatov's Avatar
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nemohm,

Sorry. Don't know why I missed or didn't reply to your answer.

Anyway, yes, the reader did give a code, and I think with the P, it is specific. P0734. I had that code from the mech that kinda cheated me a bit when he spiffed the car up for the dealer I bought it from. (Melted converter with O Sensor unplugged so they could put a new sticker on the car, shot CV axles, both of which he, and he says the stealer paid half, replaced).

Innyhoo, his reader gave me the same P0734, Incorrect 4th gear ratio as the HF reader, but the HF reader also gave me another, I forget which, for misfire on Cylinder No. 1, so I think it is actually giving me good codes.

Since I posted this, Site_administrator posted his bitch about tranny problems, and going through the posted fill up as per another poster, WAYYYY more than HE thought was reasonable, is happy like a pig in s**t with the shifting. he also had P0734, and I don't know if he no longer has or not.

My tranny was out after the engine replacement had a lost bolt problem. Detached lines, the mechs don't know how much fluid they lost. That might be the P0734 problem. Gotta see if they can follow the instructions I printed to top it up. Sloppy method, damn it. I wish they had put a dipstick tube on it to check and top off.

Audi ain't the only one, though. Mercedes has a sealed tranny, too, I think, at least the one they had in, as well as all the later VWs they've had. (Audis)

Cheers,

George
 
Old Feb 10, 2009 | 04:35 PM
  #4  
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Originally Posted by gmatov
nemohm,

Sorry. Don't know why I missed or didn't reply to your answer.

Anyway, yes, the reader did give a code, and I think with the P, it is specific. P0734. I had that code from the mech that kinda cheated me a bit when he spiffed the car up for the dealer I bought it from. (Melted converter with O Sensor unplugged so they could put a new sticker on the car, shot CV axles, both of which he, and he says the stealer paid half, replaced).

Innyhoo, his reader gave me the same P0734, Incorrect 4th gear ratio as the HF reader, but the HF reader also gave me another, I forget which, for misfire on Cylinder No. 1, so I think it is actually giving me good codes.

Since I posted this, Site_administrator posted his bitch about tranny problems, and going through the posted fill up as per another poster, WAYYYY more than HE thought was reasonable, is happy like a pig in s**t with the shifting. he also had P0734, and I don't know if he no longer has or not.

My tranny was out after the engine replacement had a lost bolt problem. Detached lines, the mechs don't know how much fluid they lost. That might be the P0734 problem. Gotta see if they can follow the instructions I printed to top it up. Sloppy method, damn it. I wish they had put a dipstick tube on it to check and top off.

Audi ain't the only one, though. Mercedes has a sealed tranny, too, I think, at least the one they had in, as well as all the later VWs they've had. (Audis)

Cheers,

George
What is a buck and fart? Is that what the car is doing? I never heard a car fart.

I wasn't "bitching"....I was describing my problem and solution in detail so that if another soul encounters a similar problem, they can compare and maybe my long detailed post would be helpful. I was frustrated after a major rebuild because it wasn't shifting correctly. I wrote "f.....ing transmission problems" as a result. I tried changing it but couldn't edit the title. If I were you, I would clear the codes . If that P0734 code comes back, you are having a problem with transmission shifting. I would concentrate on that first. That is of concern. I don't understand your symptoms. Sounds confusing and hard to understand your story. Sounds like you are "bitching" and not giving any clear symptoms for me to be able to give you something to go on.
 

Last edited by Site_Administrator; Feb 10, 2009 at 04:37 PM.
Old Feb 10, 2009 | 04:49 PM
  #5  
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oh, by the way, a "P0734" code appeared BEFORE I rebuilt my transmission.Not after! The downshifting problems I wrote about were caused by low ATF fluid. Improper refill. I never got a check engine light during my shifting problems. I was 3 and a half quarts short.

If you are getting the p0734 code, stop driving immediately and have oil and pan examined for sludge, color and smell. change, and refill while running. If code comes back you are slipping slightly on fourth, but you can't really tell untill you examine the oil. That will tell you ALOT!
 
Old Feb 10, 2009 | 06:08 PM
  #6  
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"P0734" code is the generic OBD2 code.

What is the VAG code?
 
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