Idling issues.. still

[LukeZ34]

SO, one would think, that if the TPS sensor is shorting out or failing, that unplugging it, and then running the scan software (without starting the car), it would show 0 volts, and 0 percent. Wrong! The TPS still shows 5 volts, and 100%..   I plugged in the new one without installing it, and the same problem was there..
Where does the 3 wires for the TPS sensor lead to? ECM? What else could be causing this damn thing to short out and show 5 volts and 100%? I'm gonna pull the neg. cable from the battery tonight, let the ECM reset, and then try it again. Trace wires from the TPS sensor to wherever they lead, see if I notice any damage.

This is really getting on my nerves.. If I can't figure this crap out, it's going to the family mechanic.

[LukeZ34]

Well, found my gremlin I think.
Found out that I have 12V+ on the tan wire at the TPS. Supposedly I'm not supposed to have anything at that wire. So I unplugged the ECM, and the voltage was still there, so the ECM was fine.. Next step, I traced the wireloom which ran under the plenum, and down between the the PS pump and the block. I wiggled that section of loom, and the voltage dropped to 0. So I found that by pushing down on that section of loom, the voltage drops. So, get to pull the PS pump off and peel the loom back and see what's shorting out.

[TGPilot]

:twisted: *evil voice speaking in Luke's mind* :twisted:   Forget tracing the wires! This car is a piece of shit and I hate it! If Kenny offers me $20 for the car I will take it because I hate this car! :twisted:


I hope that you find the culprit and start enjoying the car again!  8)

[LukeZ34]

Ha! Found it!

http://www.lukez34.com/hostedpics/DSC02202.JPG

There's a few more bad wires in there too. The wires get warm and rub against the wire loom which causes them to do that.. I guess that's what happened.
Now to fix it. If I remove the water pump, it will be much easier, but I'm not so sure I want to go through all of that work.

[turby]

The water pump is easy to remove.

[TGPilot]

Water pump will take 10 minutes to get off. That is newer also...put that on just before I sold it to you.

I am really glad you found the problem!!  8)

[LukeZ34]

How much antifreeze will I need to drain from the system?

[god910]

WOW, that looks like hell.  Now hurry up so you can get to the strip.   :wink:

[LukeZ34]

I've got 2 weeks to get the car running, then it's track time.  :)

I found 4 more shredded wires in that mess of shit.. I'm really curious how much better the car will run once I get this crap fixed.

[LukeZ34]

Wires are fixed, and the car runs much better, but it needs new plugs again. The ones that are in there are fouled to hell from running rich. So I'll replace those this week, and hopefully be done with this damn problem.

[LukeZ34]

FIXED!
Put in the new plugs, and she purrs like a kitten.
It still has little fits where the idle will go up and down, but it levels itself out after a few seconds of that crap.
I drove it around for about an hour today and it seemed to be happy again.
But, the turbo is on it's death bed, or at least it's seals are. Seems that I'm seeing more wiffs of smoke pass by the car when I stop at an intersection anymore. If it will last me to winter, I'll put it down then and get it rebuilt.

Thanks to everyone for the help!!  :D