My first Supra, help me get started please!

[McFly]

it sounds pretty healthy man
untill it stalls:wtf:

check the basics dude, did you???

Well I'm trying to check the basics but I've got to learn more about them first, it's all a bit confusing right now.

I did a diagnostic test tonight and pulled a code 51. I'm reading up on how to check the TPS right now and will hopefully test that to see if it's good or not tomorrow, maybe that's the problem?

I also found that when the engine is warm (after holding it above idle for probably 5 mins) it idles very smoothly, but is at ~1400rpm. If I gently stab the throttle it sometimes drops down to ~900rpm and stumbles while it pumps out black smoke. I don't know what would cause this to run so rich.. any thoughts?

When I had the intake off I checked the turbo out and could feel play in the shaft, and there was also oil coating the intake tube where the AFM is. What is common to do when the turbo is worn out?

I plan on making this a street car that will see minimal use, after I get the engine all sorted out and cleaned up I want to do some basic upgrades but probably nothing internal. My friend has a few ideas for the body that sound pretty neat, things like shaving the door handles and patching over that indent for the black strip down the center so the whole car is smooth and then throwing some black paint on it.

 

[jdub]

Code 51 is the TPS - most likely it's out of adjustment. A code 51 will occur every time with the AC button depressed or depressing the gas pedal while reading codes. Look at the TRSM on how to adjust the TPS.

In general, when you fix a code, you need to pull the EFI fuse to clear codes in TCCS memory. Then drive and re-check the codes. In this case, code 51 will auto clear (not a stored code).

You need to check the accordion (intake) hose for any crack/leaks. On the '88 TB, there's an air adjustment screw on top...it should be screwed all the way closed. The TB plate should also be fully closed at idle. Once you've check all of the above, block off the ISCV and PCV hose...the engine should immediately die. If it doesn't, you have pirate air entering the system some where.