New mk3 trying to learn a bit - Page 4

El Supracabras · 08-05-2011, 04:11 PM

Depends on what's leaking on the turbo. If it's coming from one of the fittings or flanges, you can fix it. If its coming from between the bearing housing and the compressor housing then it's time for a rebuild.
The computer will have identification labels if it is a toyota one. Is it idling with the O2 sensor hooked up now? Check codes again, it may have a different code now.

Meekmeek · 08-05-2011, 05:22 PM

No codes yet. It was driving fine for a min but the toggle switch for the power went. I'm about to head to advanced to to grab one. Wish me luck.

cre · 08-05-2011, 08:46 PM

In your last photos:

1) Fuel resistor pack relay connector. This is normally run to a relay which switches the fuel pump power to a resistor pack to help lower fuel pressure at low loads. It's commonly deleted with aftermarket pumps although this requisite has been largely disproved.

2) and 4) A pre89 ECU hacked into an '89+ chassis?

3) The HAC sensor connector. The HAC sensor is used by the ECU to account for changes in altitude. If you live near sea-level and don't drive in different elevations you may bypass it with a couple resistors, otherwise pick one up (used or new). In '89+ ECUs it is internal. See the diagram linked to below for the HAC bypass resistor values (Just a box on the side):
http://www.fadingworld.com/CRE/Autom...087-88-r21.jpg

That is one terrifying wiring job and the mods appear to be half-assed at best... I wouldn't have bought it for anything more than parts.

Meekmeek · 08-07-2011, 04:40 PM

Would you say it'd be best just to sell it? Or would you say its a pricey fix if I do the labor?

El Supracabras · 08-07-2011, 05:33 PM

That's up to you. If you like the car, then keep it and fix it. If you're not too into the supra, sell it before anything else breaks. Remember, it's a "highly sophisticated" 20+ year old car and yours has been obviously butchered by someone. It will take time, research and money to build a nice mk3 supra, probably more than you'll wish to spend. It will be pricey no matter who does the work, in the end you get more for your money doing the work yourself. If the body and interior are nice, I would fix it up for sure.

08-05-2011, 05:22 PM	#32
Meekmeek Stock Join Date: Jul 2011 Location: Augusta, SC Posts: 20	No codes yet. It was driving fine for a min but the toggle switch for the power went. I'm about to head to advanced to to grab one. Wish me luck. __________________ Mk3 7M newbie. Last edited by Meekmeek; 08-05-2011 at 05:36 PM.

08-05-2011, 08:46 PM	#33
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	In your last photos: 1) Fuel resistor pack relay connector. This is normally run to a relay which switches the fuel pump power to a resistor pack to help lower fuel pressure at low loads. It's commonly deleted with aftermarket pumps although this requisite has been largely disproved. 2) and 4) A pre89 ECU hacked into an '89+ chassis? 3) The HAC sensor connector. The HAC sensor is used by the ECU to account for changes in altitude. If you live near sea-level and don't drive in different elevations you may bypass it with a couple resistors, otherwise pick one up (used or new). In '89+ ECUs it is internal. See the diagram linked to below for the HAC bypass resistor values (Just a box on the side): http://www.fadingworld.com/CRE/Autom...087-88-r21.jpg That is one terrifying wiring job and the mods appear to be half-assed at best... I wouldn't have bought it for anything more than parts. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

08-07-2011, 04:40 PM	#34
Meekmeek Stock Join Date: Jul 2011 Location: Augusta, SC Posts: 20	Would you say it'd be best just to sell it? Or would you say its a pricey fix if I do the labor? __________________ Mk3 7M newbie.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
can i learn to drift using mkiv auto?	seantanct	Non-Generation Specific Questions	5	01-08-2009 09:58 PM
Want to learn about the Mkiv Supra?	pwpanas	MKIV FAQ	6	09-06-2008 05:37 PM
newb here wants to learn alot :)	hitm4n666	Non-Generation Specific Questions	8	08-19-2007 04:50 AM
Who wants to learn...	Stoverus	Off Topic Forum	6	10-21-2006 06:30 PM
NOOB, but wants to learn.	drifterkid240	Non-Generation Specific Questions	4	09-10-2006 07:53 PM

08-05-2011, 04:11 PM	#31
El Supracabras 3" Exhaust Join Date: Feb 2010 Location: Chicago Posts: 240	Depends on what's leaking on the turbo. If it's coming from one of the fittings or flanges, you can fix it. If its coming from between the bearing housing and the compressor housing then it's time for a rebuild. The computer will have identification labels if it is a toyota one. Is it idling with the O2 sensor hooked up now? Check codes again, it may have a different code now.

08-07-2011, 05:33 PM	#35
El Supracabras 3" Exhaust Join Date: Feb 2010 Location: Chicago Posts: 240	That's up to you. If you like the car, then keep it and fix it. If you're not too into the supra, sell it before anything else breaks. Remember, it's a "highly sophisticated" 20+ year old car and yours has been obviously butchered by someone. It will take time, research and money to build a nice mk3 supra, probably more than you'll wish to spend. It will be pricey no matter who does the work, in the end you get more for your money doing the work yourself. If the body and interior are nice, I would fix it up for sure.