5 SPD and AUTO TCU question????????? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

uthemofo · 07-23-2006, 03:07 PM

just a quick question and i searched and no luck...maby i missed one though.

is the auto tcu and teh 5 spd tcu the same????

S13Eye · 07-23-2006, 03:28 PM

Think. Think hard. Why would a manual trans need a TCU? You manually shift the gears, and apply the clutch - quite manually. The ECU recieves a 5th gear signal from a switch on the trans, but thats about it.

uthemofo · 07-23-2006, 03:42 PM

so your saying that manual cars dont have a tcu???
because my 5spd has one and so does my auto....just wondering

SimpleS14 · 07-23-2006, 08:49 PM

Correct. TCU = Transmission control unit....

I have no clue why your manual transmission would have one....are you sure someone forgot to remove it when doing a 5spd swap?

projectRDM · 07-23-2006, 09:23 PM

Incorrect. TCU= timing control unit. The device that handles rear defrost, key warning buzzer, etc. on S13s, found in the driver kick panel. Probably why both cars have it.

Nissan does not call the transmisison computer a TCU. Those who do are just confusing everyone.

SimpleS14 · 07-23-2006, 09:28 PM

Quote:

Originally Posted by R240NA

Incorrect. TCU= timing control unit. The device that handles rear defrost, key warning buzzer, etc. on S13s, found in the driver kick panel. Probably why both cars have it.

Nissan does not call the transmisison computer a TCU. Those who do are just confusing everyone.

Thanks for the correction...but I was under the assumption he was talking about transmission control units.

projectRDM · 07-23-2006, 09:31 PM

Could be, but we don't know that. While it's hopeful to think he's not that stupid, we are talking about a 240SX owner. A new one at that, with a recent join date and low post count. Assumption is the mother of all fuckups.

uthemofo · 07-24-2006, 12:37 AM

thanks guys....and no not a newbie 240 owner just found out that there was a forum a little while back...thats why low post and stuff.

well thanks and yea i did mean the little white box by your foot....
TCU

thanks guys
questions have been answered

07-23-2006, 03:07 PM	#1
uthemofo Zilvia Junkie Join Date: Apr 2006 Location: san jose Posts: 425 Trader Rating: (2) Feedback Score: 2 reviews	5 SPD and AUTO TCU question????????? just a quick question and i searched and no luck...maby i missed one though. is the auto tcu and teh 5 spd tcu the same????

07-23-2006, 08:49 PM	#4
SimpleS14 Post Whore! Join Date: Feb 2002 Location: Philly Age: 38 Posts: 9,185 Trader Rating: (0) Rides Gallery: SimpleS14 Feedback Score: 0 reviews	Correct. TCU = Transmission control unit.... I have no clue why your manual transmission would have one....are you sure someone forgot to remove it when doing a 5spd swap? __________________ *Goals are dreams with a deadline.* L.H.O.O.Q.

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07-23-2006, 03:28 PM	#2
S13Eye Zilvia Member Join Date: Feb 2006 Location: Los Angeles Age: 36 Posts: 190 Trader Rating: (0) Feedback Score: 0 reviews	Think. Think hard. Why would a manual trans need a TCU? You manually shift the gears, and apply the clutch - quite manually. The ECU recieves a 5th gear signal from a switch on the trans, but thats about it.

07-23-2006, 03:42 PM	#3
uthemofo Zilvia Junkie Join Date: Apr 2006 Location: san jose Posts: 425 Trader Rating: (2) Feedback Score: 2 reviews	so your saying that manual cars dont have a tcu??? because my 5spd has one and so does my auto....just wondering

07-23-2006, 09:23 PM	#5
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Incorrect. TCU= timing control unit. The device that handles rear defrost, key warning buzzer, etc. on S13s, found in the driver kick panel. Probably why both cars have it. Nissan does not call the transmisison computer a TCU. Those who do are just confusing everyone.

07-23-2006, 09:31 PM	#7
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Could be, but we don't know that. While it's hopeful to think he's not that stupid, we are talking about a 240SX owner. A new one at that, with a recent join date and low post count. Assumption is the mother of all fuckups.

07-24-2006, 12:37 AM	#8
uthemofo Zilvia Junkie Join Date: Apr 2006 Location: san jose Posts: 425 Trader Rating: (2) Feedback Score: 2 reviews	thanks guys....and no not a newbie 240 owner just found out that there was a forum a little while back...thats why low post and stuff. well thanks and yea i did mean the little white box by your foot.... TCU thanks guys questions have been answered