Shane Posted January 26, 2013 Share Posted January 26, 2013 I just managed to coax it to the local garage after getting it warmed up and checking ATF and seemed ok on the way there. On the way back it was going along ok then I got the sort of feeling when you brake using the gears to slow down if that makes sense (engine braking?) lasted only a few seconds then seemed ok. Got to the garage ok but had to get pushed onto the road as there's still nothing out of the reverse although still beeping and going into the selector ok. The earliest they can have a look is likely next Thursday afternoon. With the odd behavior with the 'engine braking though' it's got me a little puzzled, maybe this is something electrical? Does the autobox itself has a separate ECU or anything or is it all integrated into the big box in the passenger foot well?Good luck with it mate and hope it's not going to be an expensive one for you. If you can borrow a gearbox ecu just to eliminate it as a cause of the problem that would be good. If you were closer you would be welcome to try mine. Do let us know how you get on. Quote Link to comment Share on other sites More sharing options...
chrispot Posted January 28, 2013 Share Posted January 28, 2013 the workshop manual says there is only one ecu for gearbox and engine control on the na, tt and vvti, could you be thinking of some other ecu? Quote Link to comment Share on other sites More sharing options...
chrispot Posted January 28, 2013 Share Posted January 28, 2013 One ECU does both for N/A, but T.T. uses 2. Yours is T.T. VVTI Tiptronic and I'm yet to tinker with one of those. the workshop manual says there is only one ecu for gearbox and engine control on the na, tt and vvti, could you be thinking of some other ecu? Quote Link to comment Share on other sites More sharing options...
TubbyTwo Posted January 28, 2013 Share Posted January 28, 2013 I have a spare ECU for sale if you want to test yours? bought to test mine but wasn't the fault. Quote Link to comment Share on other sites More sharing options...
David P Posted January 28, 2013 Share Posted January 28, 2013 (edited) the workshop manual says there is only one ecu for gearbox and engine control on the na, tt and vvti, could you be thinking of some other ecu? Never having worked on those components in a T.T. I picked up that snippet on here. It looks as though I've been 'Old Wives Taled'. Edited January 28, 2013 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
garethr Posted January 29, 2013 Share Posted January 29, 2013 Never having worked on those components in a T.T. I picked up that snippet on here. It looks as though I've been 'Old Wives Taled'. Possible confusion with the MkIII? I believe that the MA70 does have a separate transmission ECU. Quote Link to comment Share on other sites More sharing options...
The-Plethora Posted January 31, 2013 Author Share Posted January 31, 2013 Thanks for the tips Tuoppi thats very helpful. Unfortunately because my car suffers from the OD/Off & occasional code 42 error I am not sure I can get anything out of it. The car has no stored standard codes when I checked the other day. I took it round the block briefly last night after checking ATF etc and again no reverse gear but drive seemed ok at first until I pulled up at a junction, stopped and tried to pull away, performance was very boggy and you could hear the turbos spooling at only a few MPH and the car would then seem to be ok whilst it got going. I am fairly certain I am going to need a new box but will check the wires on the ECU etc this weekend to see if I can see anything. Quote Link to comment Share on other sites More sharing options...
Konrad Posted January 31, 2013 Share Posted January 31, 2013 It's worth mentioning that you check transmission oil level when car is IDLING. If you did not check oil filter, I insist you do that. Take off sump and it's looking straight at your face, 3 10mm bolts and it's off. At the same time you can check solenoids (round tubes with connectors at one end) if any of them is broken. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted January 31, 2013 Share Posted January 31, 2013 Ive already suggested that but it seems to have fallen on deaf ears lol Quote Link to comment Share on other sites More sharing options...
The-Plethora Posted February 1, 2013 Author Share Posted February 1, 2013 I'm listening Swampy, i'm listening what with the snow and working away from home I just haven't had a lot of time to get to the guts of it yet. Please Bear in mind you are talking with someone who can just about change brakes here are these solenoids individually replaceable with a standard part? or is it all part of the box? It's likely to get limped down the local garage after pay day along with the autobox PDF linked earlier, I wish I bought a house with a garage! It's so tricky doing all of this stuff when all you really have is a driveway, a small box of tools and a car jack. I think when I do eventually get a cheapy second car I'm deffinately going to get one with a tow hitch so I can put the car on a trailer if I ever need to which would let me get it to one of the traders or other knowledgable folk. I will update this when I get an answer, hopefully it will help someone else if they come accross this thread in a search. Quote Link to comment Share on other sites More sharing options...
Konrad Posted February 3, 2013 Share Posted February 3, 2013 (edited) Solenoids can be replaced, if i remember correctly there was plug to disconnect and one (?) screw to take off and solenoid will slide out. Aisin is doing replacement solenoids, but considering price, I would just go for used autobox and replace it all together Do not give up on old one tho, when I had GS300 with shot gearbox and I just took my time to dismantle it and have a look inside, I did learn a lot about them Edited February 3, 2013 by Konrad (see edit history) Quote Link to comment Share on other sites More sharing options...
The-Plethora Posted February 15, 2013 Author Share Posted February 15, 2013 Small update. I have got hold of a replacement autobox and have been waiting for a replacement filter from Steve Manley to turn up. It just arrived and I am a little concerned that I haven't got the right bit, rather a useless chunk of metal? I seem to remember a fabric type filter screen somewhere in the large oval opening? Or is it just held internally in this thing? Hopefully now I have cleaned up the box I can get this installed next week if I have the right part here and not a £75 chunk of metal slag One of Chris Wilson's old posts seem to tally with the part number I have here... http://www.mkivsupra.net/vbb/showthread.php?272243-Auto-box-oil-filter-Brand-new-genuine-Toyota Quote Link to comment Share on other sites More sharing options...
Konrad Posted February 15, 2013 Share Posted February 15, 2013 Looks exactly like one in Supra manual about 2jz gearbox. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 15, 2013 Share Posted February 15, 2013 The filter should be inside the metal case. Quote Link to comment Share on other sites More sharing options...
2jzEd Posted April 29, 2013 Share Posted April 29, 2013 Any update on this? I developed the same problem. I dropped the pan and the filter is a bit dirty, a new one is on it's way tomorrow. Gonna check the solenoids but it's raining too much. Quote Link to comment Share on other sites More sharing options...
David P Posted April 29, 2013 Share Posted April 29, 2013 Any update on this? I developed the same problem. I dropped the pan and the filter is a bit dirty, a new one is on it's way tomorrow. Gonna check the solenoids but it's raining too much. The filter will have protected them. Change the filter, give it a full flush and be lucky. If that doesn't fix it you'll be looking for another transmission. Quote Link to comment Share on other sites More sharing options...
2jzEd Posted May 9, 2013 Share Posted May 9, 2013 New filter and solenoids should be in my hands today . I"ll post an update in a day or two after some test driving. Quote Link to comment Share on other sites More sharing options...
2jzEd Posted May 12, 2013 Share Posted May 12, 2013 Installed new filter and shift solenoids. Took about 6 quarts to fill because the pan had been off for 2 weeks. Went for a short cruise to warm the fluid so i could check the level correctly. Got home checked the fluid it was in the hot zone, so far so good. All smiles on my face, the trans never shifted this good through all the gears and i was loving it. Went for another drive to cover a bit of miles maybe 50 miles thereabout and i started noticing it won't downshift into 1st when i came to a stop. Then it stopped upshifting into 3rd and 4th, lost reverse as well. However when i let the trans/fluid cool down for a couple hours it drives like normal, soon as it starts getting up to temp i have upshift, downshift and reverse issues. Cold no problems whatsoever. I'll check to see if it threw codes 62 and 63 again in the morning. What's the issue with the trans? Should i just get a manual trans swapped? Quote Link to comment Share on other sites More sharing options...
David P Posted May 12, 2013 Share Posted May 12, 2013 Maybe the bottom of the radiator is clogged up and preventing the fluid cooler from doing it's job? Quote Link to comment Share on other sites More sharing options...
2jzEd Posted May 12, 2013 Share Posted May 12, 2013 Interesting point. How should i go about cleaning the cooler? Degreaser? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 12, 2013 Share Posted May 12, 2013 Just bypass it for now and see what happens. Quote Link to comment Share on other sites More sharing options...
LOGIE Posted May 12, 2013 Share Posted May 12, 2013 Just bypass it for now and see what happens. Yep this, then if all is ok just fit a separate cooler. Quote Link to comment Share on other sites More sharing options...
David P Posted May 12, 2013 Share Posted May 12, 2013 Check the transmission fluid is passing through it's cooler section and inspect the inside of rad through the bottom hose tail. Quote Link to comment Share on other sites More sharing options...
Tuoppi Posted May 12, 2013 Share Posted May 12, 2013 Try another engine control ecu, had pretty similar problems and the problem was faulty ecu. Quote Link to comment Share on other sites More sharing options...
David P Posted May 12, 2013 Share Posted May 12, 2013 Have one of those if you need. Quote Link to comment Share on other sites More sharing options...
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