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Throttle Position Sensor Question

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Old May 18, 2008 | 09:32 AM
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bhunter
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Default Throttle Position Sensor Question

Yesterday I spent 2 hours trying to set the TPS using WinALDL. When I started the TPS was reading -1.7. After adjusting the TPS the only two reading near 0.525 was 0.2 and 0.7. The refresh rate of WinALDL appears to be about every 3 seconds so I would move the senor and waited. I tried tightening down the TPS make sure of only minor movement but still no luck.

I am not bad mouthing WinALDL, I think it is a great tool. I think I must be doing something wrong. Any suggestions?
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Old May 18, 2008 | 01:54 PM
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Have you tried to adjust it with an ohmmeter. I would think that would be the way to go.

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Old May 18, 2008 | 03:30 PM
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I used 3 solid non-stranded automotive wires, maybe 8AWG, of about 3-4 inches log and curled both ends so they would make good contact in both the TPS and the wire connector. I removed the insulation so I could make connection with a DVM.

I then used 2 grabber hooks with my DVM to make the adjustment. Key turned to run but not started. No wait for updates.

The right side rearward screw for pivot was semi-loose. The left side frontward screw for adjustment maybe a little looser. Slowly moved it into position. My meter was autoranging so I could only get resolution to 2 digits, so 0.52-0.53VDC. Set it so it just starts to hit .53 and your OK.

When I started it was ~.23!!!. Noticable change in throttle response obviously.

B.....
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