Simple question here..

I know that the TPS sensor should have .54volts if you measure it on the throttle body.

I have adjusted the TPS to that. But when I datalog my ALDL port the voltage shows about .40 to about .44volts at the TunerPRO program.

So the question is: should I adjust the TPS so it get's 0.54volt at the datalog program or the sensor itself with a voltmeter??

 

I would check the ADX file for the correct conversion equation. If it is correct then check the grounds and so on for the EFI harness at the engine block.

They really should match better then what you are seeing.

RBob.

 

When you push on the gas pedal
does the throttle body open all the way

 

The ADX file is correct. I have burned my own chip so I am familiar with burning and datalogging.

I also double checked the grounds for the wiring harness and they have both to good ground ponts on each of the heads on the firewall side of the engine. I have adjusted the TPS to .54volts now and got a steady voltage of .54volts at the TPS and .46volts on the computer when datalogging.

 

Yes it goes all the way up, and the voltage stady increases up to over 5volts so the sensor is working all the way.