Someone's Failed 1JZ Swap... Can We Get It Running Again?
Reviving a JDM 1JZ Mark II Supra After YEARS – Will It Start & Drive?!
We finally got our hands on a legit JDM 1JZ-GTE-powered Mark III Toyota Supra project—and it’s a wild one. Big single turbo, R154 manual transmission, Wiring Specialties Pro Engine harness, EMU Black ECU… but it hasn’t run in years. In this video, we do a compression test, chase wiring gremlins, and attempt the first startup. Did we get it running and driving? Stick around and find out!
📦 Parts used:
– Wiring Specialties PRO harness
– ECU Master EMU Black
– Knockoff GT3582 turbo
– Yesper 6000A jump starter
– Stock injectors (for now 👀)
🛠 Future plans include:
– New turbo setup
– Bigger injectors
– Clean bay + full rebuild
– Potential giveaway?
Coilovers and wheels
Comment your thoughts: should we build it, flip it, daily it… or give it away?
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📺 Chapters:
00:00 - Intro: Why We Bought This Thing
01:02 - Meet the New Project: Mark II Supra with a 1JZ
03:00 - Turbo + ECU Setup Rundown
04:12 - Compression Test Begins
06:01 - The Wiring Nightmare Begins
08:45 - Vacuum Leaks and Loose Fittings
11:10 - ECU + Power System Setup
13:50 - Trying to Crank It Over
16:40 - Discovering Fuel & Spark Problems
20:20 - Chasing Injector Gremlins
23:15 - Test Fire with Starting Fluid
25:00 - IT LIVES (Sorta)! First Start
27:00 - First Drive… Kind Of
29:10 - Radiator Disaster + Cooling System Fixes
31:45 - Next Steps + Your Thoughts