Right, after fanny assing about changing the auto gearbox for a working one, ive still got the same problem, the car wants to pull off when in D in 2nd all the time, i can get 1st gear as long as i select it first then move the stick to D, but then it refuses to change to 3rd or 4th. i still get reverse.

 

So if its not the gearbox? what the hell is it? unfortunately the one thing i do not have spare is a Auto gearbox ECU.

 

Before i changed the gearbox and engine i was getting an error from nissan data scan saying ERROR communication to auto box ecu interrupted or something like that.

Iain, if you want a drive to the sunny midlands you can try the one in my car currently , at least then you will know .

Not sure how it works on a UK car , but the power/hold switch makes a difference in the gear it pulls away in, ie hold= pulls away in second.

 

Might have a jap Auto ECU in, though just a guess.

When i come up monday Ian, you can try my auto ecu see if it makes a difference.

Not sure how it works on a UK car , but the power/hold switch makes a difference in the gear it pulls away in, ie hold= pulls away in second.

 

Might have a jap Auto ECU in, though just a guess.

When i come up monday Ian, you can try my auto ecu see if it makes a difference.

 

no hold switch on a UK spec mate, just OD, i can try your ecu not sure if there is a difference between the N/A one though and a TT, i am how ever in safety mode, due to the DET sensor, still need to do the by pass.

 

Im also getting a gurgling sound from my turbo water by pass on the drivers side, so think i might have a air pocket in there, only happens when up to temp.

 

Just a few teething problems then lol

Not sure how it works on a UK car , but the power/hold switch makes a difference in the gear it pulls away in, ie hold= pulls away in second.

 

Might have a jap Auto ECU in, though just a guess.

When i come up monday Ian, you can try my auto ecu see if it makes a difference.

 

That sounds a good bet, no chance that the ecu or wiring for that switch is shorted anywhere? Or something else messing it up. I dont recall ever trying to put mine into 1st when in hold tbh so I wouldnt know if it would force 1st even in hold..!

surely it would still change into 3rd though? if i pull off in first then select D it will change up to second, but when i took it down the local industrial estate, it refused to change up to 3rd still, just sat there screaming its head off at 4k revs doing 65. so had to slow down as it was refusing to change to 3rd or even 4th.

 

At the moment its turning out to be a bit of a waist changing the gearbox over, hell even if it worked for 2 days how it should and then decided to bugger up, would of been better than this lol

 

But its doing exactly what the gearbox I've just taken off was doing so i might even have 2 good gearboxes and its something else, i suppose the first thing to do would be check the Auto ECU and see if the cable is seated properly. what is the likely hood the ecu is fobared?

Edited August 25, 201114 yr by vodkashots

Have you checked you TPS? it will affect the gear change if set incorrectly.

Have you checked you TPS? it will affect the gear change if set incorrectly.

 

well the TPS is the one that was already on the car, when i had the car running it was showing 0.45v

 

I cant see it changing as i haven't interfered with it, but may as well run my extention down to the car and get the car PC running, need to replace my inverter i think, it gave up the ghost just before engine and gearbox change.

Thats what i thought with mine lol and it was out. It should be 0.44v closed and 4.0v at WOT, its worth checking again anyway mate, i did mine twice before it sat right. One gnats cock of movement can change 0.01v as you tighten it back up.

Got my PC running in the car again today so thought id get the ODB nissan scan tech running, checked the codes and got error 54 ECU unable to communicate with auto transmission ECU basically, so checked the AT ecu over and checked the cables on the pins, but still no luck, cant run a gearbox diagnostic as i cant communicate with the ECU from Scantech.

 

Also had a strange idle problem today, like every now and then the car wanted to cut out but didn't, like idling properly, then almost dieing on me, then picking up the revs again and idling nicely, then almost dieing on me.

 

Cylinder test shows all cylinders are firing which is nice, throttle position sensor was showing 0.46, timing was showing 30degrees BTDC? which is strange as id used a timing light to set the timing up using the crank pulley and got it at 15 BTDC

 

Sorted out my DET sensor by pass as well, so the only code im showing at the moment is this Code 54. :(

I have same problem on a Jap import ZX tt. I have 1st and 2nd but not 3rd or 4th. I think it is a wiring problem at minute at box selecta? When I bought the car it had no fluid to that cured the 1st to 2nd issue. If it isn't a wire or switch I will be looking at Gearbox ECU and lastly the gearbox as a last resort!

I have same problem on a Jap import ZX tt. I have 1st and 2nd but not 3rd or 4th. I think it is a wiring problem at minute at box selecta? When I bought the car it had no fluid to that cured the 1st to 2nd issue. If it isn't a wire or switch I will be looking at Gearbox ECU and lastly the gearbox as a last resort!

 

Just to let you know, Voddy had a very particular problem, he was missing a very important part, a working one of these...:D

 

 

 

 

 

Jeff TT

Lol, how long have you waited to slate him off about that then ?

Iv got the same problem on my auto box aswell and I'm going crazy trying to find out what's wrong with it looks like I need to save some monies for a manual conversion

Lol, how long have you waited to slate him off about that then ?

 

Could`nt make Voddy feel any more peed than the day at JAE when we found it out!! yet he was happy too of course!

 

Jeff

I have same problem on a Jap import ZX tt. I have 1st and 2nd but not 3rd or 4th. I think it is a wiring problem at minute at box selecta? When I bought the car it had no fluid to that cured the 1st to 2nd issue. If it isn't a wire or switch I will be looking at Gearbox ECU and lastly the gearbox as a last resort!

 

Iv got the same problem on my auto box aswell and I'm going crazy trying to find out what's wrong with it looks like I need to save some monies for a manual conversion

 

Just to let you know, Voddy had a very particular problem, he was missing a very important part, a working one of these...:D

 

 

 

 

 

Jeff TT

 

Come on jeff, you forget to mention the diagnostic procedure.

 

With help (trust me you need someone else in the car in the drivers seat or face your car driving off if you have a weak handbrake) stick it in reverse and check for reverse lights, if no lights, Change the fuse and you should be good to go. the reverse lights are on the same circuit as the A/T ECU, so share the same fuse.

 

If not then you have a different problem.

 

Jaikai, people can rib me all they like, im sure they have done equally stupid decisions with out checking the easiest things first.

have you used the original electronic unit that bolts onto the gearbox, the one all the wiring connects to looks a bit like a half moon. i found mine was faulty before and couldn't do diagnostics also wouldn't change gear correctly.

have you used the original electronic unit that bolts onto the gearbox, the one all the wiring connects to looks a bit like a half moon. i found mine was faulty before and couldn't do diagnostics also wouldn't change gear correctly.

 

having changed a gearbox for a fuse, id say the first port of call would be the fuse, only when thats been eliminated from the investigation as a cause should you proceed to search for either a new box, or a manual conversion and save your self a head ache.

Vodkashots mate If you would like a hand at somepoint,I will be more than Happy to pop over and help,might not be much of a help but what i dont know ,I make up with enthusiasm

Vodkashots mate If you would like a hand at somepoint,I will be more than Happy to pop over and help,might not be much of a help but what i dont know ,I make up with enthusiasm

 

pop over if you want, but already changed the gearbox and got it working, this thread is from back in august, found out after changing the gearbox it was actually the fuse, when the new gearbox behaved the same.

 

I have a manual box to go on, but need to get a new clutch and some braided clutch line before i get around to installing it.

 

i was just lucky at the time as i was replacing the engine, so made sense to change the gearbox just in case as the car was stripped down enough to do that with out putting my self out.

well when you do the manual conversion give me a shout mate and i will come and help, that will let me see what is envolved with the manual conversion.So then i will know,when I will do mine

Jaikai, people can rib me all they like, im sure they have done equally stupid decisions with out checking the easiest things first.

 

Not trying to take the piss or anything as I know we all make mistakes and it's always the daft little things that gets us.

 

Just a few weeks ago I failed an mot on my black zed when I never tightened back up the seatbelt bolt on the passenger side, no one ever sits there so I just made it finger tight as say. I could av kicked myself as I knew it was loose.

 

As you say we all have done dumb stuff like that.