e4od on carb engine - FSB Forums
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post #1 of 3 (permalink) Old 05-26-2011, 11:02 PM Thread Starter
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Bronco Info: '95 Bronco XLT
e4od on carb engine

Quick question, are there any efi related sensors on an engine that direct the e4od transmission? I am not going carb just yet, but if i do, will i be able to use the e4od and a carb engine?
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post #2 of 3 (permalink) Old 05-27-2011, 12:51 AM
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Here is a rundown of signals the PCM uses as inputs to control the transmission:

You will need a VSS (Vehicle Speed Sensor) input.

A TPS for the throttle position feedback

The PCM also uses the PIP signal to be used as an input in determining shift scheduling and (EPC/line pressure).

The PCM also uses the Air Conditioning Clutch (ACC) signal as an input to determine EPC when the ACC is engaged to compensate for the additional load on the engine.

The Manifold Absolute Pressure (MAP) Sensor is used as an input to determine shift schedule and EPC for altitude operation.

The Low Range Switch (4x4 models) is used to Modify the shift schedule for 4x4L transfer case gear ratio.

Transmission Operating Temperature (TOT) Sensor: The Transmission Operating Temperature (TOT) sensor is located on the solenoid body in the transmission sump. It is a temperature-sensitive device called a thermistor. It sends a voltage signal to the PCM. The voltage signal varies with the transmission oil temperature. The PCM uses this signal to determine whether a cold start shift schedule is necessary. The cold start shift schedule lowers shift speeds to allow for the reduced performance of cold engine operation.

Manual Lever Position Sensor (MLPS): Sends a signal to the PCM. This indicates the position of the shift lever (P, R, N, (D), 2 or 1).

With that being said you can use an aftermarket transmission controller, but they are pricey.
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post #3 of 3 (permalink) Old 05-27-2011, 05:39 PM Thread Starter
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Bronco Info: '95 Bronco XLT
Thanks. :)
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