No drive in 1st

[psbarham]

Before NJ starts, I've just spent an hour searching,

and before the auto sicko's start gloating, its not my proper gearbox thats died, its an auto so :p

Right, Fester brought his pfl Legnum over at the weekend to diagnose the gearbox fault which is an odd one to say the least, In tip its fine, changes smoothly,drives perfectly, and generally seems OK, but in auto it becomes a pain in the ass, basically it will engage 1st OK, but as soon as you load the box up it loses drive, the indicator on the dash says 1st but there is no drive, change to tip and away we go then back to auto and its fine.
I spoke to the nutty one who suggested the gear position sensor on the gearbox, so that was duly changed, along with the multitude of other bits we found wrong, /Hissy this made no difference what so ever, i also spoke to Gowf who suggested that the oil might be at fault, but wouldn't that affect all gears at all times?
There are no fault codes on the ecu either.
Any ideas?????

[Nutter_John]

But you did search Paul, You searched your phone book and called me and Gowf :)

deffo a bizzare one thing did you swap the ecu at all ?

[bradc]

Just to clarify, when driving in tip there is no problem at all?

[psbarham]

But you did search Paul, You searched your phone book and called me and Gowf :)

deffo a bizzare one thing did you swap the ecu at all ?


well true.

didn't do the ecu as the only ones i have are 4spd pfl's.

the facelift auto ecu is different right??

[psbarham]

Just to clarify, when driving in tip there is no problem at all?

nope its sweet as a nut, well apart from the clutch is really light /pan

[Nutter_John]

well true.

didn't do the ecu as the only ones i have are 4spd pfl's.

the facelift auto ecu is different right??

yeah they are different , I think I have a pre-facelift ecu at the unit , yours to loan if you want too

[psbarham]

yeah they are different , I think I have a pre-facelift ecu at the unit , yours to loan if you want too

well its gotta be worth a punt.

Just had a thought, after we put it all back together, the box had cooled down, when I 1st tried auto it moved, but as soon as it got any heat in it it went back to normal.

[Nutter_John]

hmmm have you tried driving in first for quite a while to see if it causes a flashing n

[peter thomson]

It sounds just like the mis matched ecu gearbox problem we found when we fitted a non OWC box to a VR4 that had an OWC box. Has the box ecu been changed recently?

[psbarham]

It sounds just like the mis matched ecu gearbox problem we found when we fitted a non OWC box to a VR4 that had an OWC box. Has the box ecu been changed recently?

no but aledgedly its had a new box, but when i had a look, it looked very untouched in there

[Turbo_Steve]

Could it be the wrong box for the ECU? e.g. FL box, PFL ECU?
Isn't that what the OWC thing is about? They revised the mechanical design, didn't they?

[psbarham]

Could it be the wrong box for the ECU? e.g. FL box, PFL ECU?
Isn't that what the OWC thing is about? They revised the mechanical design, didn't they?

well its possible, but I thought the plugs on the rear of the box were different, no separate speed sensor or something simliar

[carlos-1975]

if its any help i have a f/l owc ecu

[peter thomson]

well its possible, but I thought the plugs on the rear of the box were different, no separate speed sensor or something simliar

It's just a case of adding the sensor Paul .The hole is still there for it

[themightyo]

if its any help i have a f/l owc ecu

Hey buddy. Is that ecu from the box I got from you? I'm having exactly the same thing as the OP.

Anyone want a swap if this is the case?

[Wodjno]

Have u tried the Auto ECU Paul ?

[psbarham]

Have u tried the Auto ECU Paul ?

not yet, i have an facelift auto ecu here so we will try that next weekend.

Just out of curiosity, which gearboxes have the owc? this one has a filter if that helps identify it.

[peter thomson]

OWC is stamped near the filter Paul

[psbarham]

OWC is stamped near the filter Paul

cool, thanks for that Peter

[psbarham]

right it would seem the old box is a owc equipped one and the new one isn't, so if anybody has a non owc ecu for sale pm me please

[Atik]

How do I tell? I have a PFL auto ECU spare here.

[bradc]

Probably the best way is to enter the chassis number of the car that the ecu was removed from into ASA and see what gearbox it was connected to.

[psbarham]

right, the plot thickens, we have tried 2 different ecu's today, one was from a non owc equipped car, and one was a facelift one, no idea about owc though.

the f/l one drove as before (no drive in auto 1st, ok everywhere else though), but made the tcl light go nuts.

the new one non owc one did much the same as before but when the box slipped you could restore drive by going back into neutral and then into drive again and it would carry one until it slipped again, whereas the original didn't, when that slipped drive couldn't be restored in 1st until the car stopped.

so this is pointing to a control fault so it has to be the ecu, its just a case of which bloody one now. The part numbers of the ones we tried are

The original - MR367177 - G1T1 8285 H1

The new one - MR367177 - G1T1 8285 H (notice the difference?)

The Facelift one - MR470718 - G1T 30081H7

So if anybody has any with a different part number we can try/Buy, please let us know.

[swinks]

IMO, you need PFL owc auto ecu, Paul.
FL one did nuts due to tcl issue, and pfl non-owc seems not working with owc tranny.

[psbarham]

IMO, you need PFL owc auto ecu, Paul.
FL one did nuts due to tcl issue, and pfl non-owc seems not working with owc tranny.

Done that, the new one is a non owc ecu, and the original is a owc ecu, the old gear box is owc equipped, and the new gear box isn't, so the new ecu should work, but it doesn't so...................

[bradc]

Does anyone know if there is a wiring difference? Perhaps PM Kitty's VR4, she is the wiring master

[Turbo_Steve]

Indeed...isn't there an extra solenoid involved?

[psbarham]

Indeed...isn't there an extra solenoid involved?

where? on the gearbox? all the plugs on the original loom match up fine with the gearbox.

[Davezj]

anyone know what the gearbox numbers are. i have a spare in the shed and will look tomorrow. the number is stamped just behind the ATF filter. looking from the front of the car. It was quite dirty an didn't look like there was anything there. but once i had got a tooth brush on it, i could see it says the following. but couldn't make out what the rest said.
i know the first bit of mine says W5A51 which is the general model number.
then there is a 3 digit section.
then underneath that there is a 4 digit section i think.
it was very dark so i could see very well.

where is the OWC bit stamped.

[psbarham]

anybody got an auto ecu?????

[peter thomson]

I'll check the part number on the spare we have Paul and let you know

[peter thomson]

I have one part number MR470718. Have you tried that one

[White Lightning]

The part numbers of the ones we tried are

...

The Facelift one - MR470718 - G1T 30081H7


Looks like Paul has already tried that one, Peter.

[peter thomson]

oops missed that

[psbarham]

cheers for that Peter :thumbsup:

NEXT!!!!!!!

[carlos-1975]

sorry for the delay i have
md362895 e2t6689 h7 it is a facelift owc ecu shall i send it down

[psbarham]

sorry for the delay i have
md362895 e2t6689 h7 it is a facelift owc ecu shall i send it down

the g/box we have in it is a non owc, although its getting to the point where we;ll try anything

[Roberto]

Just to send things back to basics, can you check on Caps which gearbox, main ECU and gearbox ECU part numbers are associated with the chassis number and check them against what you have.

I know you said the gearbox hadn't looked like it was changed, but just incase it was.