WHAT DID I DO???? Was running great...94 Eddie Bauer 5.0

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killerklown

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After installing NSS truck runs like crap. Fires right up, but if I touch the gas it feels like have the cylinders cut-out, it slowly revs back up and sounds fine. I took pictures and drew diagram before removing wires.
 

Tiha

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Are you talking about the Neutral safety switch?

Yeah that would be weird.
It should only affect starting and trans related stuff.
 
OP
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killerklown

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Yes, neutral safety switch. I'm not sure either, but it works great with old unit, ran like crap with new one installed. Regardless, we're all good now!
 

Ric330

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If I'm not mistaken there has always been some confusion about which one was right for certain 94 models....mostly pertaining to the time of year it was built. Mine is a May 94 and the first one I got was incorrect. It's been several years but it seems like it would start in the other gears even though it plugged right in.
 

miesk5

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If I'm not mistaken there has always been some confusion about which one was right for certain 94 models....mostly pertaining to the time of year it was built. Mine is a May 94 and the first one I got was incorrect. It's been several years but it seems like it would start in the other gears even though it plugged right in.
Yo Ric,
Right!
For other members:
As of 1994, the Neutral Safety Switch or Neutral Drive Switch (NDS) is referred to as a Manual Lever Position Sensor (MLPS) or Transmission Range (TR) Sensor.

Connector Re-Pining; "...The new style Manual Lever Position (MLPS) also called Transmission Range (TR) Sensor comes with a matching vehicle harness connector. The problem is that you have to remove the pins and their wires from the old vehicle harness connector. What ever you do don't pull all the pins out at the same time because you will never figure out were they go. Easiest thing to do is remove one pin at a time and re-install it into the new connector..."
Source: by me at Ford Bronco Zone Forums

E4OD Controls Overview, Sensors, DTC (s) & Diagram; "... The powertrain control module sends voltage to the NSS/Transmission Range (TR) sensor. The NSS incorporates a series of step-down resistors which act as a voltage divider. The powertrain control module monitors this voltage which corresponds to the position of the gearshift selector lever (P, R, N, (D), 2 or 1). The powertrain control module uses this information to determine the desired gear and electronic pressure control pressure. The NSS/TR sensor is located on the outside of the transmission at the gearshift selector lever. Harsh engagements, firm shift feel. DTC 634, 654, 667, 668, P0705, P0707, P0708, P1705..." READ MUCH MORE
Source: by Ford via FORMER MEMBER Steve83 (Steve, That dirty old truck) at SuperMotors.net
 

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