TPS questions

500hp2500 · 01-06-2011, 02:07 PM

I was wondering if anybody else was having the same problems as me. But when its raining or damp outside my TQ converter will go in an out of lock up, i think i have heard and read of this happening. But just tell me if yall are having the same issues with yalls TPS's

ions82 · 01-06-2011, 02:37 PM

The TPS uses a low-voltage DC signal. Such circuits are very susceptible to RF noise and interference. Ideally, the wire carrying the TPS signal to the PCM would be shielded, but you would have to either tear the wire out of the harness or run a new one if you wanted to shield it. I tried the method of installing a capacitor in the circuit. I'll have to look for the link, but it described using a 440uF capacitor. I used a 470uF as that is what I happened to have on hand. I soldered it into the circuit and haven't had any issues since. I'll look for that link and post it in the thread (if I can find it again).

Turbolag · 01-06-2011, 03:31 PM

My TC locks and unlocks real bad when its cold outside. I guess it needs to be adjusted. But I'm not sure how to adjust it.

illflem · 01-06-2011, 07:53 PM

TPS testing and adjustment

dstang97 · 01-06-2011, 08:46 PM

Quote:

Originally Posted by Turbolag

My TC locks and unlocks real bad when its cold outside. I guess it needs to be adjusted. But I'm not sure how to adjust it.

mine does it to when it is cold too.

illflem · 01-06-2011, 08:48 PM

Quote:

Originally Posted by dstang97

mine does it to when it is cold too.

Could be a bad tranny temp sensor.

dstang97 · 01-06-2011, 08:52 PM

If I had bad sensors TPS/ tranny sensor wouldn't it show up as a check engine light? how do i test the tranny sensor?

illflem · 01-06-2011, 09:11 PM

On the RH tranny it's easy, you just trick the computer with a 1000 ohm resistor in place of the the sensor.
What makes the RH easy is the stock sensor is external, you just unplug the sender and short beween the connector wires with the resistor.
On a RE tranny, '96 and up, the sensor is internal to the trans.
You would have to find which two wires go to the sensor, cut them and install the resistor.
Not really all that much harder but I don't know which wire colors you would need to cut.