R33 Automatic Gearbox Problem, Any Help?

[R33_Booster]

Hey Guys,

I'm new to this site so i apologise in advance for any mishaps. I have an R33 Series 1, recently my auto box has had problems changing out of first gear. It will just rev out through the gear and not change in to second. When i take my foot off the throttle it just stalls.

When i restart the car it will work fine for a while, then after waiting at lights for instants, the problem happens over again. Its at the point now i am replacing the box with a new second hand one.

I am currently running 300 HP at the rears on standard fuel, I am wondering what the max handling is of the gearbox? Is my power currently to high for the gearbox to handle and is it going to continue to blow box's, or would the problem have just been it was old and tired and required replacing?

Can anyone help me out? Feedback much appreciated

Cheers,

Glenn

Edited October 18, 2010 by R33_Booster

[R33_Booster]

Any ideas guys??

[R3N3]

i think it should be fine at those power levels. you could always shift kit it? theres a thread on here about shift kits, im pretty sure some of those guys were running higher hp

[R33_Booster]

i think it should be fine at those power levels. you could always shift kit it? theres a thread on here about shift kits, im pretty sure some of those guys were running higher hp

Cheers mate,

Ii had my box pulled out to fit a new rb25 box in, however it has a rb20 gearbox in it?

Now the rb25 box doesnt work in it. The speedo and gears are completely screwed? Reading wrong and not engaging gears properly?

Any thoughts guys? I'm completely stumped on this, i really dont understand whats wrong?

[R3N3]

so do you have an rb20? the ecu also controls the auto box, so that might be why its playing up? im not too sure on this but maybe you can only put a rb20 box back on? some one on here should know.

sorry im not much help

[turboedsloth]

What motor is in front of the box?

[R33_Booster]

What motor is in front of the box?

Hey guys,

I have an RB25....having trouble hey? I have no idea what an rb20 box is doing on my car, or how it has lasted this long for that matter. Im pushing 300 hp at the wheel at the moment thats why it blew im sure.

No sure how the ECU works, i dont understand why an rb25 box doesnt work on an rb25.

Help please ppl...

Edited October 24, 2010 by R33_Booster

[frogstarc]

Possibly a very early series 1 that still used the old transmission, and had an ecu mapped for it? I don't have anything concrete to base that on other than a vague memory of reading something about very early S1's differing from their slightly younger cousins. You could borrow/buy an ecu from a series one that u know had the re4r01a transmission from factory and try that. Maybe its possible to remap yours to suit, prolly a question for your Nissan workshop if you draw a blank here.

[R33_Booster]

Possibly a very early series 1 that still used the old transmission, and had an ecu mapped for it? I don't have anything concrete to base that on other than a vague memory of reading something about very early S1's differing from their slightly younger cousins. You could borrow/buy an ecu from a series one that u know had the re4r01a transmission from factory and try that. Maybe its possible to remap yours to suit, prolly a question for your Nissan workshop if you draw a blank here.

Thanks heaps mate, i thought the same thing....does the series 1 skyline have a seperate ecu to run the gearbox? Or is it built in to the engine ecu located under the passenger kick panel?

I just want to cover all bases before I try something rash?

Edited October 25, 2010 by R33_Booster

[frogstarc]

I'm no expert, but yes, I've heard the auto's have their own ecu, not sure where it is though. If it didn't get changed with the box, that might be your first port of call.

[R33_Booster]

Cheers for that, I will let the mechanic know. They are getting really pissed over it i think. Not being very helpful at all.

[Basti]

drivers side kickpanel from memory. i have a mate whose r33 is doing exactly this but at std power. will be interesting to see your solution

[R33_Booster]

Drivers side hey? I know the engine ecu is on the left side kick panel, can anyone comfirm that it is definately on the drivers side so i know what to tell the mechanic?

[Basti]

my memory is pretty dodgy, and i've never looked for myself, but its what i've read on here

[frogstarc]

Mmm, I think a call to Nissan with your vin and model number could be worth while. If it is the auto ecu, what if the new one doesn't fit your wiring harness? converting to the re4r01a trans might be more trouble than it's worth, or maybe it's a piece of cake and just a matter of plugging the new one in. Either way it would be nice to know what to expect before embarking on more work.

[mid life crisis]

i would give mike from mv automatics a call b4 i did anything else he is the wizz kid on these boxes

[R33_Booster]

Thanks heaps for all the help guys, my mechanic taken it upon himself to pull the 25 box out and put another 20 box in that works (HOPEFULLY).

He said its not worth the hassle to him. Im pretty gutted actually. Hopefully this one works for me and lasts a while before i can afford a manual conversion.

if you have an automatic, steer clear of Nizzpro in Ashmore, QLD. Not very helpful with automatics. Very good at everything else tho. Defianetley taking there sticker of my car!

thanks again guys, i will let you know how i go. Glenn

[redevil]

Mate Nizzpro are hopeless across the board, went in their told them I was chasing mod parts for my R33 they said what do you want we have everything. So after listing about 8 different things which they had none of I gave up and walked out.

But on the coast I'd be taking it to Lex at Russells Automatic Transmission Specialists 5561 7061

He knows alot about these boxes and will be able to help you out.