A340E with 1G-GTE

[Gem]

Hi guys,

I am trying to run my 1G-Gte with A340E auto tranny..I just put in hooked up wires everything seems quite normal but It had very abrupt shifting. days and hours of trouble shooting i figured out that tps was bad, after changing tps now tranny is shifting properly. What the problem left is L and 2 ranges. ECU turns off Sol no 1 even in L range and tranny get shifted to 3rd gear. tranny behaves in L and 2 as it is in D. What i think I must tell ECU that tranny is in L or 2 range to prevent ecu turning Sol No.1 off. I didnt get any Neutral start switch cable with tranny.
I got the plug and pin description of NSW from automotive101 but I am not sure which wire to connect at ecu and where.
I opened my ecu box and found three suitable pins (i guess) 1st=NSW, 2nd=L and 3rd = S.
I guess NSW is Neutral Start Switch as it is still hooked with manual clucth. Rest both L & S i guess should be connected to L and 2 range position wires...
Can someone confirm it

further more I am getting only 3.4 V at WOT on VTA shouldn't i get 4.5v - 5V

[CrUZida]

Have a look at any wiring diagram.
You'll see that there are input's to the ecu for when the shifter is in L or 2
These need to be wired up.
Normally its all part of the engine/tranny loom, so doesn't need touching, but if you'e done some butchery it may be something that needs looking at.

You'll also need to wire up +12v to the correct pin on the gbox, otherwise the L and 2 outputs won't be doing anything.

[Gem]

You'll see that there are input's to the ecu for when the shifter is in L or 2

I already downloaded from toymod forum but none is telling what i am looking for. What diagram tells is L,S goes to Auto tranny BUT Where????

Normally its all part of the engine/tranny loom, so doesn't need touching, but if you'e done some butchery it may be something that needs looking at.

I have moved out manual transmission and trying to work with auto and didnt got any wire cable. I figured out connector as mentioned in A340E document (autoshop101 )
http://senk9.homeip.net/manuals/Toyo...23parkneut.pdf


I am just asking where L and 2 positions wires should go? I havent seen any suitable pins on ecu besides L and S pins and really dont want to try without confirmation from someone

someone might have done butchery b4

[CrUZida]

Is the ECU just an engine ecu, or an engine and tranny ecu.
I think all 1G ecu's are just engine ecu's, and inwhich case the L and 2 wires go to the separate tranny (ECT) ecu.

On the auto tranny the two wires go to the position selector switch, near the front on the RHS.

[Z2TT]

Cruzida from what i've seen the Gen 3 1g-gte ECU is a ECU and Tranny ECU. On Toyodiy for late model z20's with the gen 3 1g-gte, the Auto ECU in the kick panel isn't listed, or it is listed but says "Not Applicable"

I remember on my Gen 3 Auto ECU that the wires to control the solenoids connected to the ECU, as I remember testing them with a multimeter directly from the ECU plugs on the harness going to the ecu.

[Gem]

Z2TT is right we dont have any seperate ECT-ECU for tranny. Engine ECU have pins for S1, S2 and S3 and shifts pretty good in D range. only problem left is in L and 2 ranges. thats why I was asking about proper pins for L and 2 range...
Anybody ever connected L and S pins of ECU ??? I beleive L should be connected to L and S to 2 range... But I just found a document of 1G-GZE it says L is R range and S is P range.
here is link to document
http://www.sssautomotive.com.au/1GGZ...%20pinouts.pdf

on page 2 (pin17,18) it says S is P range and L is R range. But it doesent make sense u dont need to tell ecu that it is in P or R. From NSW pin Ecu determines whether shift lever is in P or N or else and from L and 2 ECU determines whether shiftlever is in L or 2 range, if it in not found in L or 2 range then ecu thinks it is in D range. it is toyota's practice in all 1985-1995 ECUs whereever vehicles dont have ECT-ECU. In R range A340E is mechanically controlled not electrically....
Have i looked at wrong document or misunderstood doc???
Help guys

[CrUZida]

R is for Reverse, and P is for Power (ECT switch) - See page 1 for P

I'd be pretty confident that L and S are Low and Second.

[Gem]

Thanks Cruzida,
Thats what i thought, let me try it on weekend