2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

S5 TPS ? which is which

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Old Dec 2, 2004 | 10:39 AM
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seveninphilly's Avatar
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S5 TPS ? which is which

Standing in front of the car facing the engine, Which sensor is the narrow range and which is the full range.

Here is the problem I have two TPS's one with a bad narrow one with a bad full according to the codes my car throws.
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Old Dec 2, 2004 | 01:46 PM
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From: Orange Park FL (near Jax)
You can tell by looking at the cams that move the TPS plungers.
The long range plunger rides on a spiral cam.
The short range plunger is pushed in by an arm on the throttle shaft.
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Old Dec 2, 2004 | 02:14 PM
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From: Greenpoint, Brooklyn
the narrow-range is closer to the front of the car. the little actuator arm loses contact with it at a certain opening point (hence narrow-range) while the other one (described by sureshot as "spiral cam") continues to wide open throttle (hence: full-range).
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Old Dec 2, 2004 | 05:18 PM
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From: n
Narrow ranges wires are always green and black.


-Ted
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