Guest yksupra Posted August 21, 2012 Share Posted August 21, 2012 Hi guys I got my supra about 6 months ago! It's a RHD jdm 1993 TT 6 speed with just over 60 000kms. I imported it from Japan. It arrived in Vancouver BC Canada were I picked it up and drove it 15 hours to Edmonton Alberta canada. The car ran top notch, I had zero problems at all. I had the car in Edmonton for the next month and it ran flawlessly. When it came time to bring the car back home I loaded it on a trailer and drove 2500kms home to Whitehorse yukon Canada. The second I unloaded the car an went for a rip I noticed a problem. At any gear as soon as I hit 3000rpm the car would start to sputter/ have a violent jerk. The second I stepped into it and past about 4000rpm the car would e perfectly fine as it seemed to over power te problem. I also noticed the idle wasnt the greatest either. It's been about 3 months now and we still can't figure out the problem. Iv had the car in Toyota and at a personal mechanic and they have gone over the whole ignition system aswell most of the sensors and everything seems to be fine they just can't find the problem. The check engine light is on and pulling code 13. That has to help pin point the problem I hope. Hopefully you guys could give some ideas or possibly share similar problems youv had so I can try to find my problem!! Thanks alot! Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted August 21, 2012 Share Posted August 21, 2012 Crank sensor mate. Edit: That's what the manual would have you believe anyway. Although I've seen a dodgy ECU do the same, simply swapping it with another cured the fault. Should give you a place to start anyway. Quote Link to comment Share on other sites More sharing options...
tony tt Posted August 21, 2012 Share Posted August 21, 2012 Have a look at this thread mate. http://www.mkivsupra.net/vbb/showthread.php?219067-missfire-with-error-code-13&highlight=fault+code http://www.mkivsupra.net/vbb/attachm...0&d=1112558346 Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 21, 2012 Share Posted August 21, 2012 The crank sensor was oscilloscoped and said to be fine.. However iv read that this happens alot an it's still a bad sensor, Im really hoping this could be my problem. Thanks Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted August 21, 2012 Share Posted August 21, 2012 The sensor may have appeared fine when they tested it, but say it only broke down (signal) at certain temperatures (say engine hot, or cold, or anything in between really), the oscilloscope wouldn't pick this up unless it was at that specific temperature at the time. Does the fault come back instantly once you've cleared the codes? Also, does the fault happen all the time or just at certain points in time (ie once it's upto temperature)? Definitely sounds like sensor issues to me though. Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 21, 2012 Share Posted August 21, 2012 It happens all the time hot or cold, also at times wen I am comming to a stop sign and come to a stop in neutral the car will just rpm drop and die! and yes the code is always there! Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 21, 2012 Share Posted August 21, 2012 http://www.youtube.com/watch?v=D4qav19tlps&feature=youtube_gdata_player http://www.youtube.com/watch?v=smjD13ilBB0&feature=youtube_gdata_player There are a few videos if that helps Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted August 21, 2012 Share Posted August 21, 2012 Same as before mate, I'd say crank sensor. Is there anyone you can "borrow" an ECU from to try, just incase it's the ECU at fault? Edit: Plus trying another ecu is usually free Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 21, 2012 Share Posted August 21, 2012 I achually just ordered a new crank sensor about 5 mins ago. So 6 days and it will be in. Im do a full single conversion so I really want to get it all fixed before I start the build. I have a aem ems That will be the new ecu aswell.... So I really hope the new crank sensor does the trick. I already swapped out the igniter with a known good igniter from my friends supra and my car still did the same thing. I also had coil packs switched out and I put brand new plugs in. I hope the new crank sensor works!! Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 27, 2012 Share Posted August 27, 2012 Just a update here, we put a brand new crank position sensor in and it didn't help at all. No difference at all. The timing rotor is in perfect shape as well. We're going to test the signal from the computer. Any more input from you guys would be awsome. Thanks again Quote Link to comment Share on other sites More sharing options...
listy Posted August 27, 2012 Share Posted August 27, 2012 Test another ECU dude. Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 27, 2012 Share Posted August 27, 2012 Okay I will try my best, however the only problem is.... There's only one other supra in the city I live in, and it's a automatic I'm sure the Ecu will be different there for not even work? Thanks again Quote Link to comment Share on other sites More sharing options...
V8KILR Posted August 27, 2012 Share Posted August 27, 2012 (edited) Okay I will try my best, however the only problem is.... There's only one other supra in the city I live in, and it's a automatic I'm sure the Ecu will be different there for not even work? Thanks again The JDM TT auto ECU will run a JDM TT 6 speed but it will need to think the auto is in neutral and I'm not sure how to do that with the manual loom? ECU wiring pins are: http://mkiv.supras.org.nz/images/specs/ttecu1.gif Will even work the other way round but auto gears changes will be very harsh. Edited August 27, 2012 by V8KILR (see edit history) Quote Link to comment Share on other sites More sharing options...
LOGIE Posted August 27, 2012 Share Posted August 27, 2012 stick a wanted ad up on here (or on the US forums) for an ECU something cheap might turn up. Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 27, 2012 Share Posted August 27, 2012 I think we're going to do a little more testing on the Ecu and look at the wiring a little bit and then go from there. Is there a chance the problem could be a fuel problem somweres or is that unlikely? Quote Link to comment Share on other sites More sharing options...
SteveR Posted August 27, 2012 Share Posted August 27, 2012 Isn't 3.5k~4k where the 2nd turbo is due to come in.... could that be a clue... calling all experts on here! Quote Link to comment Share on other sites More sharing options...
David P Posted August 27, 2012 Share Posted August 27, 2012 I'm sure there's one for sale on here for about £50. Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 27, 2012 Share Posted August 27, 2012 If the second turbo could be a possibility how would you be able to pin point that? Would putting the turbos in the true single mode do anything? Would that be worth a try? Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted August 28, 2012 Share Posted August 28, 2012 Unless you were loosing a lot of fuel pressure it wouldn't do that. I still stick by the fact that it's electrical. Do you have some shitty fuel cut defender on it? What about de restrictor? I would still be trying another ecu...... before even changing the sensors. Quote Link to comment Share on other sites More sharing options...
Guest yksupra Posted August 29, 2012 Share Posted August 29, 2012 i have no fuel cuts or nothing, shes all stock. Im working on another ecu. Does stuff like this happen often? The car ran so good and then 3 days on a trailer and boom this problem came about. is there any way to test a ecu in the mean time while im looking for one to swap out? thanks Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2012 Share Posted August 30, 2012 £35 Bargain http://www.mkivsupra.net/vbb/showthread.php?273988-Auto-TT-Ecu-amp-throttle-control-ECU Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.