a340e tranny trouble

**asdfsupra** · 12-06-2008, 07:54 PM

A m8 of mine just put his engine n box back into his car and it now it wont shift automotacially if its left in D its starts off in top gear even tho it all work sweet b4 he pulled it apart.....any ideas any1.....

cheers
Damien

**RA35GT** · 12-06-2008, 08:35 PM

Check the wiring to the shift solenoids dood.

**allencr** · 13-06-2008, 01:35 AM

Originally Posted by asdfsupra

... now it wont shift automotacially if its left in D its starts off in top gear even tho it all work sweet b4 he pulled it apart

Does it shift manually? Torque converter lockup seem to be working ?
If it shifts OK manually, I'd think that the solenoids & clutches & bands & pump & fluid & whatever are OK and that "before he pulled it apart" is important for things that still might be unconnected or loose or not making contact because they are damaged or have been swapped/cross connected.
There's usually a weighted centrifugal force type governor valve and/or vacuum operated valve and/or a manual throttle 'kick-down' to control the automatic shifting. All the electronics - ECU Jr. & solenoid operated valves on yours do the same things, except that it might even be something with the TPS for all I know.

**Hibba** · 13-06-2008, 10:10 PM

Its to do with the solenoids.

The box is in limp mode.

D is OD
2nd is 3rd Gear
1st is 1st.
Box wont shift by itsself.

**asdfsupra** · 14-06-2008, 06:39 PM

Originally Posted by Hibba

Its to do with the solenoids.

The box is in limp mode.

D is OD
2nd is 3rd Gear
1st is 1st.
Box wont shift by itsself.

This is exactly what it is. How do you go about getting that fixed? Is it a sensor problem?

**Glenno52** · 14-06-2008, 08:36 PM

Are wires to speed sensor at rear of tranny connected?

**asdfsupra** · 15-06-2008, 05:28 PM

Yea all those cables r connected.... i told my this dude that it was in limp mode and he said something bout it havin a code in the ecu and to take it somewhere to hook it up to diagnotics and they can work that shit out.... ????

**Kyosho** · 16-06-2008, 05:27 PM

Reset the ECU.
No I'm not shitting you.
Double check your connections, then reset the ECU.

**asdfsupra** · 16-06-2008, 08:42 PM

Originally Posted by Kyosho

Reset the ECU.
No I'm not shitting you.
Double check your connections, then reset the ECU.

tried that this avo and it didnt work.... i reset by diconnecting the batt. for 30mins... is there another way of doin it??

**asdfsupra** · 21-06-2008, 08:15 PM

did a diagnostic test and got code 51 which is switch signal

No "IDL" signal, "NSW" signal or "A/C" signal to ECU during diagnostic check

http://www.supras.co.uk/resources/Mk...nginecodes.htm

tested it while it was in park n neutral and with A/C off... think it mite b the IDL signal.

ne ideas???

cheers