96' 47RE TPS Reading - Competition Diesel.Com

Turbonetics TQ · 05-18-2023, 08:42 AM

I have been having some really odd shifting for a very long time and last night I plugged in a scan tool that would display the TPS reading that the PCM views. I had fixed a loose brake pedal which would cause the brake switch to act strange and fail, but I continued to have a torque converter lock-up issue and was diving deeper.

TPS showing 5% and would not change with throttle input. So, I plugged in my POT that I had built a long time ago and it works just fine (I can vary it from 0%-100% and it reciprocates that on the scan tool).

I then removed the TPS from the pump, plugged it in and actuated it using a flat head screwdriver. It would display 0%-100% on the scan tool.

Next, I went to install the TPS back on the truck, but I kept the scan tool under the hood to watch what its reading during installation. I had to "finagle" it so it would read 0% when bolted down.
Now it will sweep from 0% to roughly 80% from no throttle to full throttle.
The truck shifts better than it has in years!

I am trying to see if anybody has viewed the TPS on a scan tool and what their range is that you see?
-Should I be seeing 0%-100%?
I cannot seem to find a spec for the range requirements.
My scan tool (Auto Engineuity) does not display voltage, I could spoon in to the backside of the plug and measure with my Fluke if needed.

bateman · 05-18-2023, 10:03 AM

I believe it’s on my thread about the pot mod where some guys here were helping me out. I’ll dig it up or you can if I don’t report back timely.

bateman · 05-18-2023, 10:56 AM

That info was not in my thread, sorry.

Turbonetics TQ · 05-22-2023, 06:03 PM

Correction on my reading: TPS will read 1% to 55%.
This is exactly the same with a brand new sensor.

SCHMITTY · 06-10-2023, 06:42 PM

I’ve ran a pot in the past . Picked up a new to me 12v last week and want overdrive to engage later but still utilize the tps . It’s out of adjustment room. Trying to think of a way to adjust it even more for later upshifts

05-18-2023, 08:42 AM	#1
Turbonetics TQ Name: Turbonetics TQ Title: Turbonetics Turbochargers Status: Not Here Join Date: Feb 2007 Location: CASPER Wyoming Member`s Gallery Posts: 375	96' 47RE TPS Reading I have been having some really odd shifting for a very long time and last night I plugged in a scan tool that would display the TPS reading that the PCM views. I had fixed a loose brake pedal which would cause the brake switch to act strange and fail, but I continued to have a torque converter lock-up issue and was diving deeper. TPS showing 5% and would not change with throttle input. So, I plugged in my POT that I had built a long time ago and it works just fine (I can vary it from 0%-100% and it reciprocates that on the scan tool). I then removed the TPS from the pump, plugged it in and actuated it using a flat head screwdriver. It would display 0%-100% on the scan tool. Next, I went to install the TPS back on the truck, but I kept the scan tool under the hood to watch what its reading during installation. I had to "finagle" it so it would read 0% when bolted down. Now it will sweep from 0% to roughly 80% from no throttle to full throttle. The truck shifts better than it has in years! I am trying to see if anybody has viewed the TPS on a scan tool and what their range is that you see? -Should I be seeing 0%-100%? I cannot seem to find a spec for the range requirements. My scan tool (Auto Engineuity) does not display voltage, I could spoon in to the backside of the plug and measure with my Fluke if needed. __________________ 96 Reg cab 2wd auto Turbonetics compounds Billet 64mm and Mid frame 88mm Spearco IC 80 VW Rabbit truck resto in process 1.6 TD 2013 Ram 3500 DRW copper.

05-22-2023, 06:03 PM	#4
Turbonetics TQ Name: Turbonetics TQ Title: Turbonetics Turbochargers Status: Not Here Join Date: Feb 2007 Location: CASPER Wyoming Member`s Gallery Posts: 375	Correction on my reading: TPS will read 1% to 55%. This is exactly the same with a brand new sensor. __________________ 96 Reg cab 2wd auto Turbonetics compounds Billet 64mm and Mid frame 88mm Spearco IC 80 VW Rabbit truck resto in process 1.6 TD 2013 Ram 3500 DRW copper.

06-10-2023, 06:42 PM	#5
SCHMITTY Name: SCHMITTY Title: Not enough time Status: Not Here Join Date: Jun 2012 Location: K beach, AK Member`s Gallery Posts: 1,183	I’ve ran a pot in the past . Picked up a new to me 12v last week and want overdrive to engage later but still utilize the tps . It’s out of adjustment room. Trying to think of a way to adjust it even more for later upshifts __________________ stock 94

05-18-2023, 10:03 AM	#2
bateman Name: bateman Title: Too Much Time Status: Not Here Join Date: Feb 2019 Location: Alabama Member`s Gallery Posts: 2,672	I believe it’s on my thread about the pot mod where some guys here were helping me out. I’ll dig it up or you can if I don’t report back timely.

05-18-2023, 10:56 AM	#3
bateman Name: bateman Title: Too Much Time Status: Not Here Join Date: Feb 2019 Location: Alabama Member`s Gallery Posts: 2,672	That info was not in my thread, sorry.