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TPS % Open Reading in WinALDL

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Old 05-27-2004 | 07:16 PM
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jfreeman74's Avatar
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
TPS % Open Reading in WinALDL

In Winaldl it is reading my %TPS at WOT as 94%. The TPS is set at .54V at idle. Has anyone tried filing down the hardstop on the throttle body to make it read 100% or is 94% a normal reading for WOT in WinAldl?
Old 05-28-2004 | 11:38 AM
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From: San Lorenzo, California
Car: 1987 Firebird Trans AM
Engine: 383 TPI...very soon
Transmission: TH700R4
Looking at my WinALDL logs, I see my Throttle Position Sensor reading up to 93%, no higher, even though I know I was at WOT a few times. In Tunerpro RT I see my TPS Voltage at 4.14 volts.

I have checked my throttle, if I push the pedal to the floor, the throttle body is wide open, the lever on the cable side touches the stop. So I would guess I either have a bad TPS, or somehow the stop on the throttle body is too early?
Old 05-28-2004 | 12:15 PM
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From: Bonner Springs, KS
Car: 1995 Corvette
Engine: LT1
Transmission: 6 spd Manual
Axle/Gears: Dana 44, 3:45:1
Click on Configuration in the WinALDL main screen. You can set the TPS voltage for 0% and 100%. I think those settings are there because your ECM doesn't auto-adjust the base TPS voltage that it sees as 0% like a speed density setup does.

The default setting for 100% is 4.60 volts, so that makes sense.
Old 05-28-2004 | 12:19 PM
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From: San Lorenzo, California
Car: 1987 Firebird Trans AM
Engine: 383 TPI...very soon
Transmission: TH700R4
Originally posted by thirdgen88
I think those settings are there because your ECM doesn't auto-adjust the base TPS voltage that it sees as 0% like a speed density setup does.

The default setting for 100% is 4.60 volts, so that makes sense.
Does the ECM see 4.14 volts as WOT then, or am I never getting into WOT mode in the ECM?

Just curious... I think I need a new TPS anyways.
Old 05-28-2004 | 12:30 PM
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thirdgen88's Avatar
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From: Bonner Springs, KS
Car: 1995 Corvette
Engine: LT1
Transmission: 6 spd Manual
Axle/Gears: Dana 44, 3:45:1
I meant that the default setting for 100% in WinALDL is 4.60 volts... I'm not too familiar with how that ECM determines WOT..
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