tps help
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Last edited by Joe C; Jul 23, 2015 at 04:00 AM.
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From: Summerland B.C. Canada
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What reading do you get when you open the throttle to maximum? It should go to at least 4 volts.
How are you measuring the TPS voltage? You should be measuring between the middle and bottom wires on the TPS connector. DO NOT use engine metal as the ground point for your meter. [ EDIT ] I screwed that up. I relied on my memory, which is obviously not as reliable as I thought. Measure between the middle and TOP wires. [ /EDIT ]
For reference, you should measure approximately 5 volts between the top and bottom TPS wires. That 5 volts is a reference voltage that comes from the ECM.
How are you measuring the TPS voltage? You should be measuring between the middle and bottom wires on the TPS connector. DO NOT use engine metal as the ground point for your meter. [ EDIT ] I screwed that up. I relied on my memory, which is obviously not as reliable as I thought. Measure between the middle and TOP wires. [ /EDIT ]
For reference, you should measure approximately 5 volts between the top and bottom TPS wires. That 5 volts is a reference voltage that comes from the ECM.
Last edited by Cliff Harris; Jul 24, 2015 at 11:53 PM. Reason: Added corrected information.
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Friends, Romans, Countrymen. Lend me your ears.
3 wires. 1 5V, 1 Ground and 1 input to the ECM. Find the 5V and the other 2 should be easy. If you don't have 5V reference, you have other issues.
3 wires. 1 5V, 1 Ground and 1 input to the ECM. Find the 5V and the other 2 should be easy. If you don't have 5V reference, you have other issues.
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Team Owner
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From: Summerland B.C. Canada
Race Director
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From: Anaheim CA
Team Owner
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From: Hartford WI
Ground 1 end of the DVOM and touch the 3 wires, one at a time till you get 5 V. That is your reference. Now you have 2 wires left. Key on, Engine off, tweak the throttle and touch the other 2 wires. As you increase throttle, you get more voltage through one of them. Should start at about 0.5V. That is your signal to the ECM. Last wire is ground.
