So I've learned a lot since I've become a member here, but apparently I'm not done yet...
Last night when I was playin in the mud, I pulled over for a quick break, I could hear an exhaust leak. I shut the truck off to check out my collector gasket again (I've blown 2 out in a week, as the bolts keep loosening up). After fixing that problem, I start the truck up, but it won't idle! It acts just like a massive vacuum leak. It will run ok, but WILL NOT idle.
After limping it home, I pull the code from the computer, and it gives me a 7 flash code (Throttle Position Sensor). I'd really like to put an ohmmeter on this and make sure it's the problem before forking out over $100 for a new one, but I don't know what readings I'm supposed to see.

Can anyone help me out?

'85 4x4 SR5
22RE
Balanced, .040 over
.435 lift cam
Headmann header, 2.25" exhaust, flowmaster

 

This should get you started:

http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

 

wow! there's a lot of good info there! thanks!

 

New TPS did the trick! thanks again!