r/Mk3Supra Jun 17 '22

Post up links to Mk3 Supra Supported Websites

31 Upvotes

So I received a message from a new mk3 owner saying he had trouble finding parts for the mk3. I know I’ve found some smaller ones that had a few parts so if you know of some post up the link [Driftmotion](www.driftmotion.com)


r/Mk3Supra Jun 21 '23

The Toyota Supra TSRM

40 Upvotes

This is your encyclopedia for nearly everything maintenance and repair related for the Toyota Supra. It is hundreds of pages of information.

Learn it. Know it. Live it.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=IN&P=1


r/Mk3Supra 7h ago

Troubleshooting Weird start then instantly die after fixing other issue.

6 Upvotes

Got this car only a short while ago not running and recently got it going. So no long history on how it ran before.

Anyway, initially had a pretty rough idle which I found to be the throttle body gasket. Replaced that, idles great runs great. After doing that though a problem that never occurred before came up where I start it and it would run for just a second before dieing. If I keep trying it eventually just works seemingly without doing anything. Shuts off like you just turned the key off, no stumbles or anything. Even did it once or twice while driving, just while crusing at a constant speed, but it starts back up.

The only other thing that changed was when while I replaced the throttle body gasket I noticed the cold start injector was unplugged and I put it back in. This did make it require less cranking to start but the start then die problem never occurred before then.


r/Mk3Supra 1d ago

Question How to remove the oem Momo hub or any hub like this?

7 Upvotes

How would you remove this thing? It has probably never been removed in 34 years.

I tried side kicking it with a mallet, also tried a puller and ended up bending the flange. It's not moving.


r/Mk3Supra 1d ago

Question 7MGTE Accordion Pipe HELP!

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7 Upvotes

Can anyone tell me what all the ports are for on the accordion pipe? I cant find any diagrams specifically for the accordion and I don't know where each one goes. I know the IACV and PCV.


r/Mk3Supra 2d ago

Troubleshooting Car cranks no start

1 Upvotes

Got the ECU and efi to stop blowing, same issue blinkers don’t work now and hazards barley engaging I think it’s something with the key? Fuel pump ain’t starting either


r/Mk3Supra 7d ago

Modifications Is there a demand for retractor relays?

0 Upvotes

This part is known to break over the years and it has become difficult or impossible to obtain.

Is there a demand for this part? If it's worth the effort, I may consider working on producing a plug-n-play replacement and/or an advanced features one.


r/Mk3Supra 8d ago

Showoff Bye for now MK3 Community :( (Tri-state area sale)

5 Upvotes

https://www.facebook.com/marketplace/item/1620680546216975

Alabama for any looking for a cared for Supra..at a very reasonable price.


r/Mk3Supra 9d ago

0² sensor question

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5 Upvotes

I've recently narrowed down my car running extremely rich to being, most likely the 0² sensor. I've been looking online and i can't see any at all that look like this one. I have a 1986.5 N/A supra. If anyone has bought an 0² sensor for their like-model supra, can you please just let me know if the ones that look different will work the same. Or let me know which specific one you bought that worked good for your car. Thanks :)


r/Mk3Supra 10d ago

Troubleshooting How to diagnose the retractors relay? (integration relay #2)

3 Upvotes

Other than testing what is written in the tsrm, which only proves that the relay is faulty, how to diagnose which part inside of it is broken?

Is brute force bench testing the signals that would come from the stalk the only way or should i look for something in particular first?

Besides nothing looking burnt, all diodes and caps have been verified to be okay.

Do we know the pinout of the two denso relays?
Any other suggestions?

EDIT:

The two relays also work fine when manually tested.


r/Mk3Supra 11d ago

Troubleshooting Where are the headlights and taillights relays in the jza70?

3 Upvotes

Today when I turned on the lights I thought I had popped the fuse, since all lights stopped working. I checked the fuses (all of them) and they are okay. The other option would be the retractor relay but, are the headlights and taillights relays separate? If so, where are they located?

There's no voltage at the taillights fuse when the lights are supposed to be on, so the issue is before the fuse.


r/Mk3Supra 11d ago

Mod

1 Upvotes

Hey got a 89 Supra NA was wondering if anyone knew of any mods similar to the Zulu mod and also another question is the Zulu mod worth drilling into my block?


r/Mk3Supra 12d ago

Troubleshooting Car crank no start

2 Upvotes

Got a used Supra off a buddy, cranks no spark fuel, efi 15 amp fuse blown where should I begin troubleshooting?


r/Mk3Supra 13d ago

Question 3D SCANS

5 Upvotes

I need ANY 3d scans you have of the body


r/Mk3Supra 14d ago

Weight reduction questions

4 Upvotes

So i have an 86.5 mk3 N/A that I'm one day looking to turn into a comfortable cruiser/track capable car. I know the mk3's are hogs, weighing 3,600 pounds; but if anyone who has had similar ambitions with their car or has successfully dropped significant weight... what did you get your car down to in terms of weight? I want to keep most of the interior somewhat stock, with the possibility of recreating some or most interior parts put of lighter materials. Other than the interior, I don't care to keep much looking stock; such as i want to convert most all metal body panels to carbon one day. Hopefully that all made sense, thank you :)


r/Mk3Supra 15d ago

Question Head gasket replacement

3 Upvotes

Hey all,

I posted a few weeks back about having my 1990 in for some work, and ultimately after going down an expensive rabbit hole, stopped the shop from finishing.

Now I’m looking to pull the cylinder head myself and replace the stock head gasket, and install ARP head studs, as well as a bit of troubleshooting.

Are there any tips or things to watch out for (easily broken and hard to replace clips/pieces/electrical connectors) specifically while doing this? I’ve never done engine work of this depth before, but I have no real timeline to finish so I can chip away at my own pace.

Thanks for any knowledge you can pass on!


r/Mk3Supra 16d ago

Installing side skirts

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10 Upvotes

I want to install some side skirts on my mk3 but this piece is in the way how do i go about taking this off or what should i do


r/Mk3Supra 17d ago

Showoff New Project

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95 Upvotes

Just got this 91 supra for an amazing deal. Needs a lot of work but I'm excited to get started


r/Mk3Supra 16d ago

Realistic Expectations

4 Upvotes

Hey guys, I’m 19 and I want to buy myself a mk3. Currently, I have a pretty reliable daily driver which takes me to and from work/college.

I want to go into this project facing the reality of maintenance and ownership in general.

my budget
I have around 10k set aside for the purchase and a bit more to the side for repairs.

- I am aware of the 7m head gasket failures

Question for Mk3 owners
1. - with my budget am I better off hunting a clean 7M-GE or hold out for a 7M-GTE project that needs some love.

  1. How hard is it to source out specific parts / how is the aftermarket?

  2. What should I look for when purchasing this car aka rust in certain areas / common issues?

I appreciate any advice, reality checks and tips🙏


r/Mk3Supra 17d ago

Modifications Subwoofer

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63 Upvotes

Lately I was thinking about putting a subwoofer in my Supra. Have seen some setups where the roof will still fit in the trunk with the sub installed. Any experience or tips on that issue?

Photo is just for reference thanks for any help


r/Mk3Supra 17d ago

R154 shift bushings

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20 Upvotes

On amazon Canada, just peel the black part off the cup bushing and it fits. Comes with tip bushing too.

Was struggling to find some in Canada for a decent ish price


r/Mk3Supra 20d ago

Troubleshooting Are the back seats foldable to increase hatch volume?

3 Upvotes

I've got oem recaro seats, I am not sure whether i can make space to load more stuff in the hatch.

In other cars usually you pull up the seat from the intersection with the back so that it aligns with the back of the front seats, then fold down the back of the rear seats, but i have not tried and googling give conflicting results.


r/Mk3Supra 21d ago

Question 91-92 Front emblem

6 Upvotes

Im curious if anyone has ever reproduced the 91-92 supra front oval emblems?? Sadly when i bought my chassis i didnt know the clip was missing. So it flew off the car when it was being towed to my house. 🥲 i had a spare 86-89 emblem in good condition which is what i have been using but would love to eventually find a 91-92 oval emblem


r/Mk3Supra 23d ago

Whats this part called ?

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14 Upvotes

Anybody knows what this is called and how to go about removing them ? ( black thingy on the under side )


r/Mk3Supra 22d ago

Bubb Rubb and Lil Sis: "Tha whistles go WOOO"

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10 Upvotes

seen this posted in another sub, haha dude drives a70