1G TPSVolts Look Good, but TPS Position at 0%

[akamiller]

Hi All, having a bit of an issue. I sent my throttlebody off for rebuild and received it back ready to go with the TPS sensor being tested and confirmed in good working condition. It's back on the car, the car starts and idles perfectly fine, but when I give it gas, it hits about 2000 rpms and then starts surging. After doing some logging, I noticed that the TPSVolts were reading as they should, but the Throttle Position was always reading 0% no matter how far I push down the gas.

Should I be looking at the wiring harness? What other things should I be looking at?

Thanks in advance!

 

[DSMPT]

Did you check TPS adjustments in ECMLink?

 

[Vegas Smith]

Hmm, if the sensor tested correctly then maybe it is some type of connection issue. It should read some positive percentage when you get on the throttle. Check the plug and connector. Maybe some type of grease or soap got in there.

 

[akamiller]

Did you check TPS adjustments in ECMLink?

yes, they were in there from a previous adjustment. I should remove those adjustments and start over correct?

 

[Vegas Smith]

yes, they were in there from a previous adjustment. I should remove those adjustments and start over correct?

Sure, can't hurt to redo it but your tps isn't reading at all from what I gather.

 

[DSMPT]

yes, they were in there from a previous adjustment. I should remove those adjustments and start over correct?

As @Vegas smith said redo is a good idea. better do it each time when you move the TPS. and How much voltage is ECMLink showing for Min/Close and Max/WOT? Sounds like it is not reading the voltage when the throttle is open.

 

[motomattx]

He said the tps voltages are all good, it sounds like a software problem.

 

[DSMPT]

He said the tps voltages are all good, it sounds like a software problem.

Yes he said. I just double checked that I thought maybe he only checked 0.63V for closed position and did not check the voltage movement until WOT.

 

[Justin Lemons]

Curious to see what it was I'm basically having the same issue. I'm not on link unfortunately. My issue is from a dead stop to about 2200 to 2300rpm. I'm extremely confused on this issue.

 

[THEIFNDNIGHT]

Hi All, having a bit of an issue. I sent my throttlebody off for rebuild and received it back ready to go with the TPS sensor being tested and confirmed in good working condition. It's back on the car, the car starts and idles perfectly fine, but when I give it gas, it hits about 2000 rpms and then starts surging. After doing some logging, I noticed that the TPSVolts were reading as they should, but the Throttle Position was always reading 0% no matter how far I push down the gas.

Should I be looking at the wiring harness? What other things should I be looking at?

Thanks in advance!

Start from the top
http://www.ecmtuning.com/wiki/v3tpsadj

 

[pauleyman]

Hi All, having a bit of an issue. I sent my throttlebody off for rebuild and received it back ready to go with the TPS sensor being tested and confirmed in good working condition. It's back on the car, the car starts and idles perfectly fine, but when I give it gas, it hits about 2000 rpms and then starts surging. After doing some logging, I noticed that the TPSVolts were reading as they should, but the Throttle Position was always reading 0% no matter how far I push down the gas.

Should I be looking at the wiring harness? What other things should I be looking at?

Thanks in advance!

What you're saying doesnt make sense. Ifvoltage is fine it cant be zero. Is the zero item your IDLE position sensor?