Can't understand why my supra is tripping NEED HELP PLEASE

[Prince]

Ok, i recently bought a mkiii supra and on the way home the throttle engaged itself all the way. I shut the car off and coated to the side. I had to tow the car home and then i took a look to find that the tps was loose, and is missing a screw. I tightened the one screw i had and then turned on the car. Now the rpm jumps from 500-3000 over and over and over. What is the problem? any suggestions would be great, its been sitting outside for a week and its killing me that i cant drive it

 

[Supracentral]

So your car has been sitting for a week, and during that time you couldn't puzzle this out?

Read this section in the TSRM:

http://www.supracentral.com/foundation/tsrm/efi-system/

Do you know what a throttle position sensor does?

This specific page in the TSRM may help:

 

[mattsplat72]

Ummm put the second screw in and adjust it.... Derp

 

[MarkIII4Me]

How about taking it to a mechanic and having it repaired? This is obviously way above your skill set. You bought a 20 year old sports car off of someone without knowing the basics. Looks like you'll need to start learning quick or you'll be out major $$$ over your period of ownership. Wait until the real issues with these cars start veering their heads.

 

[suprra_girl]

You should really add more information to your posts too i.e is it turbo or non turbo

There could be a few things but a good place to start is with supracentral's post, you'll need a set of feeler gauges and a multimeter to set the tps correctly, if this isn't set properly it will cause all hell of problems.

Also don't forget a supra owners best friend is self diagnostics http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=23

 

[Nick M]

Can't understand why my supra is tripping NEED HELP PLEASE

Maybe it didn't have its teleprompter? As for the idle, follow the book.