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Not My Day Today

ecl

By ecl,
in R35 GTR

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ecl Mentor

ecl

Posted
Posted

So drove down the southern highlands from sydney today. On the way home near heathcote, car suddenly feels like its losing power and I get a TCM error.

Pull over and restarted the car cool down and tried restarting but still had the error. Had my Cobb on me but for some strange reason, after plugging in, it just loads the AccessPort screen.

Anyways, realised the car only had 1,3 and 5 gear and was in limp mode (I think) as it feels the car limited my speed to under 40 km/h.

Will be taking it to the workshop on Monday (out of warranty and cobbed so doubt Nissan will like that) but from reading, I suspect it could be a solenoid or sensor. Though it obviously could be something more serious =(

If you have had the issue before, could you shoot me a PM please =)

Thanks

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domino_z Mentor

domino_z

Posted
Posted

if it was something major the car wouldn't be driveable

most likely pressure sensor or solenoid

either way nissan dealer wont attempt to trouble shoot beyond ecu codes, their suggested and only fix will be a replacement trans - dealers aren't mechanics

best put the car on a truck and send it to willall

Speedah Enthusiast

Speedah

Posted
Posted

So drove down the southern highlands from sydney today. On the way home near heathcote, car suddenly feels like its losing power and I get a TCM error.

Pull over and restarted the car cool down and tried restarting but still had the error. Had my Cobb on me but for some strange reason, after plugging in, it just loads the AccessPort screen.

Anyways, realised the car only had 1,3 and 5 gear and was in limp mode (I think) as it feels the car limited my speed to under 40 km/h.

Will be taking it to the workshop on Monday (out of warranty and cobbed so doubt Nissan will like that) but from reading, I suspect it could be a solenoid or sensor. Though it obviously could be something more serious =(

If you have had the issue before, could you shoot me a PM please =)

Thanks

Most probably pressure sensor fail...same problem I had.

Dont bother will Nissan...if your car is modded they will diagnose then charge you to say they cant help.

If you want to transport your car to Willal in Adelaide by someone who cares about your car let me know

Kev

  • Like 1
ecl Mentor

ecl

Posted
  • Author
Posted

They managed to pull the codes using their AP but I didnt ask them what they were as I was flat out today. I'll ask them tomorrow but they mentioned they got the usual plus one they haven't gotten before.

They also cleared the codes and it drove fine again for a bit. Then they went from 5th to 6th and the the transmission oil pressure shot up to double and the the t/m malfunction and limp mode came back on. I'm assuming this is pressure sensor or related.

In any case, the gearbox is coming out tomorrow to get fixed.

  • Like 1
Brockas Proficient

Brockas

Posted
Posted

P2832 - Shift Fork 'A' Position Circuit Range/Performance

Solution for the aftermarket appears to be the TSB Clip (assuming your car is 2011+).

Taken from 'Jacks Transmissions': ( http://www.jackstransmissions.com/pages/gtr-gr6-clip-tsb )

The shift pistons in the valve body make contact with the forks and move them into position. If these pistons wear, the forks and sliders will no longer shift properly and can be damaged. This is a common problem with the GR6. Prevention is to perform this TSB.

We have never encountered these problems again after performing this TSB so it has become standard procedure to install clips in every unit we touch.

APPLIED VEHICLE:2009 – 2011 GT-R (R35)

For 2009 - The MIL is on and DTC P0729 (6GR Incorrect Ratio) is stored,
For 2010 - The MIL is on and DTC P0729 (Sleeve A1 Function) is stored,
For 2011 - The MIL is on and DTC P2832 (Shift Fork A) is stored,


Here is a picture below of the wear. Note the circled area. It doesn't look like much, but that is enough to cause thousands of dollars in damage:

DSC06452_grande.JPG?648

The clips will allow for better contact with the piston and prevent the wear or failure.

There are a series of magnets inside the piston which will become out of range of the sensor if the assembly wears too far. This will prevent the system from recognizing where the piston is moving and the unit will shift the fork too far as it doesn't know the forks location. This is what will break the fork along with the slider. This simple TSB solves any issue you could ever encounter with the fork or sliders. Well worth performing while you have your pan out and this TSB can be completed while the trans is in the vehicle.

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