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» Northern California Ford Owners     » Automotive   » Tech Talk   » why is TPS reading at 4.9 volts???

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Author Topic: why is TPS reading at 4.9 volts???
gercolla1
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This is a project that was just fired up. I did the rest of the tuning, but am stuck at the problem at the TPS. The TB is a new edelbrock 70mm. This reading of around 5 volts at closed throttle is way out there and cannot be adjusted for. What is going on here? [patriot]

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Sf Bay Area

Posts: 2171 | From: Sampan San Francisco | Registered: Jul 2003  |  :
Blind
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tps is bad or you have a bad or missing ground for the fuel injector harness.

it should read 5volts at wide open throttle, around 1 volt at closed.

are you testing the green lead wire for the tps to a ground, like the thrrottle body housing?

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Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  :
Hungry Hippo
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sounds like you are testing the wrong wire

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Posts: 2959 | From: east bay | Registered: Nov 2001  |  :
JohnB
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You either have the fuel harness ground disconnected or you are checking the orange wire of the TPS...

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Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002  |  :
gercolla1
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OK, will check again to be sure; green wire & ground. Thanks!
Posts: 2171 | From: Sampan San Francisco | Registered: Jul 2003  |  :
racercosmo
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Uhm yeah, did you not get the memo about TPS reports??

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Posts: 973 | From: Marin | Registered: Sep 2002  |  :
Wildfire532FB
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quote:
Originally posted by racercosmo:
Uhm yeah, did you not get the memo about TPS reports??

haha [patriot]

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