Help! Engine stops in drive or rear mode

MadK11 · 09-10-2019, 12:40 PM

Hey guys,

I am from germany. Sorry for my bad english

my 2009 370Z 7AT makes me problems. Sometimes if I stop the car in drive or rear mode, the engine stops. It feels like, a clutch does not open.

There is a p1585 G-sensor code in the transmission control module.

I changed the tranny fluid and flushed the hole system. For the next 100km was everything allright. But now ii is worse then before.

Has anybody got an idea?

JARblue · 09-10-2019, 12:47 PM

Like the car dies completely?

Did you flush the AT transmission fluid using the correct steps per the factory service manual? If you simply drain and refill, it will not be at the correct fill level when the transmission warms up.

A quick google search appears to indicate the error code is a Throttle Control Unit malfunction.

MadK11 · 09-10-2019, 01:00 PM

I dont use the original manual, but I used over 15 liters of gnissan tranny fluid to flush the hole system. I filled the tranny up, start the engine, until it has about 35 degrees Celcius. I think this is 95 degrees fahrenheit, change every gear P, R, N, D for 10 seconds and then I oben the screw until the fluid drops in short frequencies.

What do you mean. Was it correct?

MadK11 · 09-10-2019, 01:05 PM

I also checked the realtime data of the g-sensor.
When I stop at a flate place, it shows about 0,.. degrees. When I drive it works realistc, I think. When I park at a pitch or a slope, the data is realistic as well.

JARblue · 09-10-2019, 02:28 PM

Probably good enough on the flush. The key is to get the fluid warm so you can check the fill level properly.

SouthArk370Z · 09-10-2019, 04:35 PM

Quote:

Originally Posted by MadK11

... Sometimes if I stop the car in drive or rear mode, the engine stops. It feels like, a clutch does not open. ...

Sounds like the torque convertor lockup is not unlocking.

RWT · 09-10-2019, 08:17 PM

Quote:

Originally Posted by SouthArk370Z

Sounds like the torque convertor lockup is not unlocking.

This was my first thought also.

MadK11 · 09-11-2019, 03:33 AM

This is possible, but how can I find out? Suppose it were, what would be the cause? Maybe the Transmission Valve Body?

And why I have the CODE P1585 G-Sensor in the tranny module?

Has anybody out there the same problems?

CrunchyCajun · 09-11-2019, 03:13 PM

This is EXACTLY what happened with my 7AT at 48k miles. Paperwork said "torque convertor. locked up."

The car was under warranty and Nissan replaced the entire transmission. However, the torque convertor can be changed and there is at least 1 modified one that sounds like it should handle anything thrown at it.

https://www.levelten.com/370_TORQUE_...-converter.htm

MadK11 · 09-12-2019, 05:52 AM

You lucky guy. My Z has no warranty

Thank you for the link, but the question is, is the torque converter my problem, or the valve body, because the torque converter is controlled by the valvebody?
If the torque converter clutch solenoid doesnt work properly, then it is the same effect.

Has anybody a wiring diagram for the solenoid. I will try to cut the wire to the torque converter clutch solenoid. Then I can be sure which part doesnt work right.

SouthArk370Z · 09-12-2019, 07:14 AM

Quote:

Originally Posted by MadK11

... Has anybody a wiring diagram for the solenoid. I will try to cut the wire to the torque converter clutch solenoid. Then I can be sure which part doesnt work right.

Check the FSM. Link in sig.

MadK11 · 09-12-2019, 02:17 PM

Nice,

I will try as soon as possible

Spooler · 09-12-2019, 03:10 PM

Quote:

Originally Posted by MadK11

You lucky guy. My Z has no warranty

Thank you for the link, but the question is, is the torque converter my problem, or the valve body, because the torque converter is controlled by the valvebody?
If the torque converter clutch solenoid doesnt work properly, then it is the same effect.

Has anybody a wiring diagram for the solenoid. I will try to cut the wire to the torque converter clutch solenoid. Then I can be sure which part doesnt work right.

If when you try to stop and the car keeps going forward until you stall it, the TC broke a sprag not allowing it to unlock. Dodge diesel trucks would do this but they have an anti-stall feature making the truck just push right on through the brakes. Talk about a crap the pants moment.

MadK11 · 09-16-2019, 05:10 AM

Ok, but it is not every time. Some days everything works good, another day the problem almost always appears. That irritates me a little

NissanTracker · 09-16-2019, 07:05 PM

Servus! Viel Glück. aus Amerika ��

09-10-2019, 12:40 PM	#1 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	Help! Engine stops in drive or rear mode Hey guys, I am from germany. Sorry for my bad english my 2009 370Z 7AT makes me problems. Sometimes if I stop the car in drive or rear mode, the engine stops. It feels like, a clutch does not open. There is a p1585 G-sensor code in the transmission control module. I changed the tranny fluid and flushed the hole system. For the next 100km was everything allright. But now ii is worse then before. Has anybody got an idea?

09-10-2019, 12:47 PM	#2 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Like the car dies completely? Did you flush the AT transmission fluid using the correct steps per the factory service manual? If you simply drain and refill, it will not be at the correct fill level when the transmission warms up. A quick google search appears to indicate the error code is a Throttle Control Unit malfunction. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \| Last edited by JARblue; 09-10-2019 at 12:50 PM.

09-10-2019, 02:28 PM	#5 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Probably good enough on the flush. The key is to get the fluid warm so you can check the fill level properly. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-11-2019, 03:13 PM	#9 (permalink)
CrunchyCajun Base Member Join Date: Aug 2010 Location: MD Posts: 73 Drives: 09 tour/sprt wht 7A Rep Power: 400	This is EXACTLY what happened with my 7AT at 48k miles. Paperwork said "torque convertor. locked up." The car was under warranty and Nissan replaced the entire transmission. However, the torque convertor can be changed and there is at least 1 modified one that sounds like it should handle anything thrown at it. https://www.levelten.com/370_TORQUE_...-converter.htm MadK11 and Asus_ like this. Last edited by CrunchyCajun; 09-12-2019 at 03:50 AM.

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09-10-2019, 01:00 PM	#3 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	I dont use the original manual, but I used over 15 liters of gnissan tranny fluid to flush the hole system. I filled the tranny up, start the engine, until it has about 35 degrees Celcius. I think this is 95 degrees fahrenheit, change every gear P, R, N, D for 10 seconds and then I oben the screw until the fluid drops in short frequencies. What do you mean. Was it correct?

09-10-2019, 01:05 PM	#4 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	I also checked the realtime data of the g-sensor. When I stop at a flate place, it shows about 0,.. degrees. When I drive it works realistc, I think. When I park at a pitch or a slope, the data is realistic as well.

09-11-2019, 03:33 AM	#8 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	This is possible, but how can I find out? Suppose it were, what would be the cause? Maybe the Transmission Valve Body? And why I have the CODE P1585 G-Sensor in the tranny module? Has anybody out there the same problems?

09-12-2019, 05:52 AM	#10 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	You lucky guy. My Z has no warranty Thank you for the link, but the question is, is the torque converter my problem, or the valve body, because the torque converter is controlled by the valvebody? If the torque converter clutch solenoid doesnt work properly, then it is the same effect. Has anybody a wiring diagram for the solenoid. I will try to cut the wire to the torque converter clutch solenoid. Then I can be sure which part doesnt work right.

09-12-2019, 02:17 PM	#12 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	Nice, I will try as soon as possible

09-16-2019, 05:10 AM	#14 (permalink)
MadK11 Base Member Join Date: Feb 2013 Location: Germany Posts: 16 Drives: 10 Nissan 370Z w Aut Rep Power: 20922	Ok, but it is not every time. Some days everything works good, another day the problem almost always appears. That irritates me a little

09-16-2019, 07:05 PM	#15 (permalink)
NissanTracker Track Member Join Date: Jun 2016 Location: Massachusetts Posts: 724 Drives: 07' Nismo, 14' Nismo Rep Power: 29261	Servus! Viel Glück. aus Amerika ��

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