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TPS diagnostics ( 88 EA Spac MPI 5spd ) 

 

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 Post subject: TPS diagnostics ( 88 EA Spac MPI 5spd )
Posted: Fri Nov 22, 2013 3:29 pm 
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Ride: 1988 5spd DOHC EA Falcon S

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G'day guys, today i went out to do some diagnostics on my TPS, i've got the voltage between the red and black wire that goes to the throttle position sensor, i probed the wires, chucked the ignition ON, not a running engine, just ON ignition, and the voltage reading i was getting is - 4.95... no varying voltage when opening up the throttle, just a constant - 4.95... I had a spare sensor lying around, gave me the same bloody reading... Am i doing this test wrong? Or is this something to do with a computer fault...

Any information/suggestions on this would be much appreciated.

Cheers

 

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 Post subject: Re: TPS diagnostics ( 88 EA Spac MPI 5spd )
Posted: Fri Nov 22, 2013 4:12 pm 
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Check voltage between the black and the other wire. I think it should be green..
The red or orange is signal voltage 5v
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 Post subject: Re: TPS diagnostics ( 88 EA Spac MPI 5spd )
Posted: Fri Nov 22, 2013 6:37 pm 
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Ride: 1988 5spd DOHC EA Falcon S

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TROYMAN wrote:
Check voltage between the black and the other wire. I think it should be green..
The red or orange is signal voltage 5v


Cheers for that, the voltage starts from 0.8 and smoothly goes up to 3.8v, i believe this is normal? Wouldn't be causing my misfire / surging anyway.

 

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 Post subject: Re: TPS diagnostics ( 88 EA Spac MPI 5spd )
Posted: Fri Nov 22, 2013 6:46 pm 
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Yea thats fine.....
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 Post subject: Re: TPS diagnostics ( 88 EA Spac MPI 5spd )
Posted: Fri Nov 22, 2013 6:51 pm 
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Yea thats fine.....
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