MKIII (1986.5-1992)

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Forum: MKIII (1986.5-1992)

For general discussion about topics relating to the MKIII.

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  1. For technical information about modifications/repairs to the MKIII.

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    1. Info regarding swapping the JZ-series engine into the A70 chassis.

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      • Threads: 9,360
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  2. For frequently asked questions about the MKIII.

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    • Threads: 97
    • Posts: 1,732
  1. Sticky Thread Sticky: Connector pins for 7m-GTE harness

    We need to start something here for the 7M harness like the JZ engines have. The connectors on the 7M are just as crusty. Anyways, I'm trying to find the connector and pin for the Oil sender for a 7m that I'm transplanting to my JZ, the connector and pin are in foul shape from the donor...

    Started by ZaZZn, 03-12-2017 09:28 PM
    • Replies: 6
    • Views: 593
    03-27-2017 09:57 AM Go to last post
  2. Sticky Thread Sticky: Your 1JZ-GTE And 2JZ-GTE Swap Guide For Dummies

    I have noticed a lot of the 1JZ information is not as accurate as it used to be. The common parts that are interchangeable with the 2JZ are the easy ones to find and we know they fit. In this thread I will list everything there is to know for us MKIII owners about doing a 1JZ-GTE and 2JZ-GTE Swap....

    Started by IBoughtASupra, 06-25-2013 10:09 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 42,981
    01-14-2017 07:29 PM Go to last post
  3. Sticky Thread Sticky: New To MKIII Section??? Rules, Info and Search Help Here.......

    I have edited and relocated some useful information to help alleviate some questions from new users. Please read below for basic information on how this forum operates and how to better access it. - Trey SEARCH HINTS/HELP- The Supraforums search feature can be very helpful in keeping the...

    Started by SupraTrey, 12-19-2012 03:43 PM
    • Replies: 1
    • Views: 12,655
    12-21-2012 04:05 AM Go to last post
  1. Help me change head gasket

    Can someone tell me step by step with pictures if possible how to put back together an engine head with everything back together?

    Started by binorx, Today 12:46 PM
    • Replies: 2
    • Views: 73
    Today 09:04 PM Go to last post
  2. Chris's 89 hardtop vvti build

    Whatsup everybody. Im Chris(I hate my username) for those who dont know me.Well, since facebook has stolen most of the forums glory lately....I thought Id try to pump some life back into this place and show my build. Im going to show you what Ive started with and where Im at with the car now, and...

    Started by telefender71, 06-13-2015 11:20 PM
    4 Pages
    1 2 3 4
    • Replies: 82
    • Views: 9,930
    Today 12:32 AM Go to last post
  3. 88 GE Yellow too 92 GTE Gray plug

    Any tips or advice? I've look for pinouts for both the GE connectors and the GTE connectors. Any help would be appreciated!

    Started by Gigawar, Yesterday 05:35 PM
    • Replies: 4
    • Views: 88
    Yesterday 07:01 PM Go to last post
  4. Car Cranks but won't run

    Hey guys, having an issue with my 87 7mgte. Randomly one day the car just decided not to start up and run after driving it for an hour. Car would initially start and run for a second a handful of times but struggle to idle then die and then would just crank. After getting it towed home (8 hours...

    Started by Superium, Yesterday 06:44 PM
    • Replies: 0
    • Views: 64
    Yesterday 06:44 PM Go to last post
  5. 1988 Error Code 22 Coolant Temp Sensor

    I am currently getting my 1988 mk3 up and running after buying it with an incomplete NA to 7mgte engine swap. It's running now but it's throwing a code 22 for the coolant temp sensor. I ran new wires from the back of the ecu to the sensor and am still getting the code so theres no short in the...

    Started by brianboko, 05-20-2017 04:00 PM
    • Replies: 1
    • Views: 82
    Yesterday 11:40 AM Go to last post
  6. unexpected supra purchase...

    a friend called me this morning and was in need of some money asap. so he offered me his white 88 turbo for a good deal. ive always wanted one in white, except for the red/maroon interior (which will be taken out in the future). i may actually my just strip the interior, sell the parts then...

    Started by jdm-rhd, 05-18-2017 05:23 PM
    • Replies: 6
    • Views: 301
    05-20-2017 12:42 AM Go to last post
  7. White MKIIIs only

    Post up your white MK3s in this thread! White was obviously the color Toyoda intended for all Supras to be. Let's see some Super White power!

    Started by Dachande, 05-02-2011 06:30 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 166
    • Views: 32,312
    05-19-2017 05:28 PM Go to last post
  8. 7MGTE Runs lean Cold Start

    Hello Everyone, I am having a really strange issue with my car that I really cant seems to get ahold of. Basically when I start my car when it is cold it will run lean. Even when It is warmed up to temp the car will still run lean and have terrible drivability. The idle A/F is 18+ and...

    Started by backwoodsballer, 04-04-2017 12:15 PM
    • Replies: 10
    • Views: 325
    05-19-2017 04:20 PM Go to last post
  9. Replaced PS pump, hard steer

    Heres the deal: 87 supra 7mgte auto Hasnt been on the road since Feb. Been fixing lots of different things, mainly the timing belt. Replaced PS pump with reman pump from autozone. New belt, nice and taut. Pulley spinning normally, no slips. Both idle-up vacuum lines connected. Bled it in...

    Started by giltheartist, 05-08-2017 12:01 PM
    • Replies: 23
    • Views: 435
    05-19-2017 03:33 PM Go to last post
  10. Do I need to do a torque sequence again?

    Hey everyone, I took off ONE EACH of my main caps and rod caps to look for scoring and stuff, is it okay for me to just put them back in and torque them to spec or do I need to undo all and torque them all in sequence again? Thanks!

    Started by vikingshotgun, 05-19-2017 03:11 PM
    • Replies: 1
    • Views: 75
    05-19-2017 03:25 PM Go to last post
  11. 1JZ running rich and black smoke everywhere limp mode

    runs extremely rich, wideband pegs to the left, when i rev it up it sounds like it has a launch control because of the limp mode things I've done: checked injectors ignition coils are good igniter is good timing is good map sensor is good spark plugs are new coolant sensors are plugged in

    Started by 95musubi, 05-13-2017 07:04 AM
    • Replies: 17
    • Views: 301
    05-17-2017 10:24 PM Go to last post
  12. Bucking and backfiring

    7mgte 1987 k&n filter and 3in exhaust harpies and his bov are my only mods. Engine ran great for years then after cleaning the air pipes and putting them back the car all of a sudden bucks and stalls after warm up and has a cel but I hadn't checked the codes yet. Tach drops 200-1000 while bucking...

    Started by Xplodr, 05-16-2017 01:23 PM
    • Replies: 11
    • Views: 194
    05-17-2017 05:42 PM Go to last post
  13. Ecu master det3 questions

    First off please move if in the wrong spot. I have a det3 that I plan on installing this weekend, when I have it hooked up can I drive like normal or will I need to make modifications to the software to get it to run right? I was told by my mechanic I need a base map before I put my 750...

    Started by Bass4dayz, 05-10-2017 12:12 PM
    • Replies: 7
    • Views: 195
    05-17-2017 01:33 AM Go to last post
  14. MKIII Aftermarket stereo kit

    I'm trying to install a double din touchscreen stereo but i cant seem to find a double din in dash kit online. does anyone know any kits that will fit? Fairly new to the supra ownership scene just got my 92 base model running and wanted it to sound nice on the inside too.

    Started by josh6186, 05-03-2017 11:07 PM
    • Replies: 6
    • Views: 247
    05-15-2017 02:04 PM Go to last post
  15. First mods for my '89 Supra

    Hello, I am starting to mod my mk3. I have some items listed, can anyone check if I'm not forgetting anything? Just looking for 350-400whp at the moment (with stock turbo), want to update my turbo later (for 550-600whp). 1. Catless Downpipe, with muffler 2. Lexus AFM v8 3. 1000cc injectors...

    Started by reniiieeeBE, 05-13-2017 02:52 AM
    • Replies: 6
    • Views: 259
    05-15-2017 10:53 AM Go to last post
  16. 7M-GTE Throttle Linkage Delete Mod Success - No New Cable!

    I wanted to share some photos of my successful 7M-GTE Throttle Linkage Delete Mod. This mod is taking the stock cable and routing it under the intake manifold. No EGR make life easier. Then run it up in to the throttle area. Use the cable stop from your Linkage set up and *Make a bracket...

    Started by TerrenceLP, 03-06-2013 06:40 PM
    3 Pages
    1 2 3
    • Replies: 60
    • Views: 6,979
    05-15-2017 07:30 AM Go to last post
  17. Front subframe problems

    So I honestly hunted and couldn't find a single post relating, so here it is: Somehow my passenger side door the two rear bolts managed to get shifted and I'm not sure how. When I pulled the bolts, nothing. When I tried rethreading, drivers side went in fine, the left side stripped and here I...

    Started by jellytehweeb, 05-10-2017 06:47 PM
    • Replies: 5
    • Views: 202
    05-14-2017 08:50 PM Go to last post
  18. Sheedy Built Supra

    This build has been over the course of 4 years of hard work and lots of money spent. it was posted on SM just because i didnt know of SF at the time, so ill be posting it here now too! lets start off at the beginning,...

    Started by sheedy126, 04-06-2016 10:00 PM
    4 Pages
    1 2 3 4
    • Replies: 93
    • Views: 6,684
    05-14-2017 08:21 PM Go to last post
  19. 1JZ Bogs when touch the throttle at all

    hey guys, just got my 1JZ into my 240. it starts up and idle perfect but as soon as i touch the throttle it just bogs out and stumbles until comes back to normal idle. ive already check crank sensor, cam sensors, test and adjust my TPS. After adjusting my TPS it would even start until i loosen...

    Started by preluder3084, 05-05-2017 07:48 AM
    • Replies: 14
    • Views: 299
    05-14-2017 03:47 PM Go to last post
  20. Can't decide whether or not to buy 1988 MK3 Supra

    Supra forums, I'm a new poster and I am in urgent need of some help. Have an opportunity to buy a MK3 for an amazing price. The original 7mge engine was seized so it was swapped with a 7mgte. Only issue is the current idle is crap. Seller is highly trusted and thinks the issue is with the CPS....

    Started by brianboko, 05-08-2017 06:42 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 742
    05-14-2017 08:41 AM Go to last post
  21. Why is is so hard to decide 2jz swap or built 7m

    Beating my head against the wall trying to make up my mind on whether I should liquidate all my 7m parts and motor and install a 2jzgte or just put a fresh built 7m back in. I got a 7m with a built head and bottom end and a good number of things to support it but not everything. But then I keep...

    Started by Mokusatsu, 04-29-2017 12:45 PM
    3 Pages
    1 2 3
    • Replies: 64
    • Views: 2,274
    05-13-2017 01:59 PM Go to last post
  22. Please Post Most Aggressive/Clean MK3 Pics

    Hey guys, I'm looking at getting an mk3 again. Please post some pics of some of the most aggressive looking ones you've seen/have to motivate my search. Not just aggressive as in wheels but wicked Clean as well. Thanks

    Started by BlackCherrySupra, 11-28-2007 12:06 AM
    67 Pages
    1 2 3 4 5 6 ... 67
    • Replies: 1,661
    • Views: 421,841
    05-12-2017 12:33 PM Go to last post
  23. Fuel cut or boost leak

    My car gets full boost quickly and by 4K rpm I hit fuel cut. It's just weird because I don't even have a boost controller just wastegate. Aftermarket boost gauge reads between 9-10. If I 3/4 throttle the car I can get to 5.5k rpm at 7-8lb before it happens. 57trim turbo with stock fuel system. ...

    Started by Bass4dayz, 05-10-2017 02:35 PM
    • Replies: 7
    • Views: 169
    05-12-2017 12:10 AM Go to last post
  24. bring her back to life part du she will go under her own power now what?

    New year nice weather again time to start back to work. If you don't want to go through the other thread, last may we purchased a car that had sat for 4 years and we brought her back to life finally in December with much help form forum members. In Iowa that's to cold to work on a car unless you...

    Started by 1933beer, 04-08-2017 06:06 PM
    • Replies: 19
    • Views: 621
    05-10-2017 11:07 PM Go to last post
  25. What happens when I don't polish my cams?

    Just curious. Just pulled the caps off and noticed some scoring/scratches. If I put the caps back on and run my engine what would happen in the long run?

    Started by vikingshotgun, 05-07-2017 05:41 PM
    • Replies: 7
    • Views: 260
    05-08-2017 09:21 PM Go to last post
  26. 2jzge coils on 7m issue

    Today I finally decided to convert to 2jzge coils. Unfortunately it didn't work out for me. I bought 3 brand new coils and ngk wires for a 2jzge. Also bought a new coil pack harness from Toyota. I made sure that the 7m firing order sequence was correct as well. I mounted everything nicely and...

    Started by Joe1234, 04-30-2017 01:49 PM
    2 Pages
    1 2
    • Replies: 30
    • Views: 653
    05-08-2017 12:57 PM Go to last post
  27. My come back to the supra world..

    Hello all - First off super sorry if this is posted in the wrong section. I just want to re-introduce myself to this forum with my new car and details on her. I will periodically post upgrades and what not for the other JZA70 owners. This is Sayuki my MKIII 1J Pwrd. List of mods --

    Started by Samurai-, 05-04-2017 05:42 PM
    • Replies: 13
    • Views: 357
    05-08-2017 11:59 AM Go to last post
  28. Information Request for Uniball suspension dust boots

    Good Morning all, I was cruising through some build threads thinking about the day that I actually get to install my full Battle Version suspension (It's sitting in my car in Texas while i'm over seas) and I ran into this thread: ...

    Started by seoul4korea, 04-27-2017 06:42 PM
    • Replies: 1
    • Views: 156
    05-07-2017 11:12 PM Go to last post
  29. Suspension upgrade questions

    Hey all, I'm sure this has been posted many times before before but what I've found is not exactly what I want to know I'm looking to do a few things to my suspension first off it's mainly for street driving g with occasional track days and I don't want to spend a fortune but what can you all...

    Started by Twadecook, 05-01-2017 05:07 PM
    • Replies: 19
    • Views: 459
    05-07-2017 08:23 PM Go to last post
  30. Need detailed photos of engine

    Hey guys I just finished up a forged build on my 7mgte, and am getting ready to put it back in the car. Unfortunately I lost all of my photos of everything and I cant seem to remember where some things go. Pretty much dumb stuff like which hole in the block does the knock sensor screw into. If...

    Started by dufresne143, 04-30-2017 09:15 PM
    • Replies: 12
    • Views: 417
    05-07-2017 03:51 AM Go to last post
  31. Oil filter where???

    Im about to order the summit kit, and was deciding between mounting just under the crossmember near the drain plug, or all the way across the oil pan to where the AC bracket used to bolt into the block. Who's actually done this and where did you mount yours? Yes i have searched btw but i cant...

    Started by giltheartist, 04-13-2017 06:31 PM
    • Replies: 10
    • Views: 417
    05-06-2017 09:27 PM Go to last post
  32. cricketjoe1's mk3 2jzna-t aem 30-6050 DIY guide/build thread

    Happy New Year! Instead of going to a strip club with buddies and blowing all my money like I've done in the past I decided to stay in... and start writing this... Shit. I think I need help. I couldn't decide whether to make this a build thread or a guide so I combined them and made it a...

    Started by cricketjoe1, 01-01-2014 12:12 AM
    5 Pages
    1 2 3 4 5
    • Replies: 112
    • Views: 34,858
    05-06-2017 12:58 PM Go to last post
  33. Request: Count your R154 ABS Speed Sensor Teeth Count - Original 3.73 models.

    Hoping someone out there that is rebuilding their R154 can count the # of teeth on their ABS tone ring. I am in process of converting my 87' to 3.73 Gearing from 3.91. The last part I need from Toyota is discontinued, can't get it anymore. The correct drive gear for the speedo. I will be...

    Started by Piratetip, 04-23-2017 04:21 PM
    • Replies: 15
    • Views: 410
    05-05-2017 06:09 PM Go to last post
  34. Going back to stock bov?

    So I have a bov that vents to the atmosphere and therefore is causing stalls etc. I was wondering how do I go back to stock bov?

    Started by Xplodr, 05-03-2017 04:33 PM
    • Replies: 9
    • Views: 226
    05-04-2017 07:14 PM Go to last post
  35. Lots of smoke

    Ok so my engine was just recently rebuilt. New pistons/ rings, valve job, custom cams, cam gears and a couple other things that don't affect the engine. I just recently had to replace all the suspension bushings and while I was waiting for parts I decided to put on a turbo I had been waiting to put...

    Started by howellr2, 04-01-2017 07:50 PM
    • Replies: 5
    • Views: 474
    05-04-2017 02:46 PM Go to last post

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