420A Possible bad TPS? Need help!

[SuperFudge]

Hi everyone! I have another problem that i need help diagnosing. I personally believe that my throttle position sensor is on the fritz, because when i would be driving the car (AT) and out of nowhere the car would drop a gear or two which will send the RPM's up to about 5-6k. Then a split second later the car will go back to normal. On another note that could be related the car will surge when holding the accelerator steady when driving but this only happens under 3,000 RPM. BUT this only happens at any given time.

I took my ohmmeter and connected it to the TPS terminals 1 and 3 and got 4.5k-ohms (spec 3.5-6.5k)

So that was fine but next i connected the ohmmeter to terminals 2 and 3 and very slowly opened the throttle all the way to WOT but i didn't notice any jumps in the values.

So all the symptoms are pointing to the TPS but the readings came out okay.
What do you guys think? I don't want to replace it if it's okay, because that's $60 wasted.
Any help or advice is welcome!
Thanks!

 

[TexasTurbo]

Are the TCU's in these cars susceptible to the same capacitor failure as the ECU's are? I'm not sure, you may check that if someone verifies that this is a potential point of failure.

 

[hoby0316]

I would have the TCU tested.

 

[lastshark08]

Id say tcu I had a sheclipse back in the day and the tcu actually ruined the trans cause it was so out of whack.

 

[SuperFudge]

Now if my TCU was on it's way out wouldn't it put the car in fail safe/ limp mode? Also I don't have any check engine lights.

 

[SuperFudge]

Ok, i called a few shops around my area to see if they can dig into my car and possibly test my TCU. Surprisingly they told me that they actually "don't want to look into the car" also "since its OBDI it will take to much time to figure out whats wrong with the car." Another shop had no clue what the hell a TCU was.

When i finally got ahold of this one particular shop they wanted almost $400 just to diagnose some stuff. Not including the necessary repairs...
Obviously they are giving me the reach around. And yet again with this car i hit another wall with nowhere to look.

Any advice you guys?

Im moving to Cleveland in two months which is a 7hour drive, i need this car to be running right.

 

[SuperFudge]

Bump, still having problems. It still drops gears, stalls, and shudders. To top it all off this has caused me to get involved in an accident. It's been to two mechanics and alot of trail and error on both sides behalf. Over $500 later, still not fixed...

I'm getting tired of this damn car.
I need some input on this problem.
Please.

 

[bryanwheat]

If the tps test's good than it is good. Have you checked for transmission codes? What color is the fluid, and what does it smell like?

 

[SuperFudge]

The trans has fresh genuine MOPAR ATF+4 fluid from the dealership and a new trans filter. Even before hand the fluid was in good shape