E4OD Limp Mode; "...If all the shifts are hard, the computer is going into limp mode which causes the trans to shift hard because the pressures are increased. The computer goes into limp mode when it senses an error in the transmission shifting or electrical system. The most common cause for this is the Manual Lever Position/Transmission Range (MLPS/TR) Sensor.
This is the sensor that is bolted to the drivers side of the transmission case with the shift lever arm going through the center of the sensor. Try disconnecting the battery for 15 minutes with the headlamps on. This should clear the limp mode and return the transmission to normal shift strategy. If it does then the problem is intermittent. If it still shifts hard then the fault is continuously occurring. It is possible that there is another input/output signal problem, but 99% of the time it is the range sensor especially if it clears limp mode proving the problem is intermittent..."
"E4OD Nagging Neutral Nonsense & Pinpoint Test, Manual Lever Position (MLPS) also called Transmission Range (TR) Sensor. "...One of the most-difficult problems to diagnose on a Ford car or truck is a sudden neutral condition while the vehicle is cruising in 4th gear. Now this can have a number of causes, depending on which transmission is in the car or truck, but the cause we are going to discuss here is that #(~! *&A% Manual Lever Position Sensor – that’s right, the old MLPS. This sensor is responsible for more malfunctions than any other sensor in the system, and the kicker is that it seldom stores a code
See Diagrams & instructions
Source: by Pete L at http://www.transonline.com/transdige...ers/index.html
and fyi, more on this;
Description & Operation ifrom 1996 F-Series and Bronco Equipped with E4OD and 4R70W Transmissions Workshop Manual; E4OD, 4R70W, Diagnosis & Testing, Removal & Installation, Adjustments, Wiring Diagram, Specifications & Special Service Tools & Equipment; Symptoms: Engine Will Not Crank in Either PARK or NEUTRAL, Engine Cranks with Transmission Range Selector Lever in Ranges Other Than PARK or NEUTRAL, Backup Lamps Inoperative, Harsh Shifts, Firm Engagements, Improper Shift
Harsh Shifts, Firm Engagements, Improper Shift
Harness connector not seated properly; harness damaged, corroded.
INSPECT for damage. SERVICE as required.
TR sensor misadjusted, damaged.
ADJUST TR sensor. REFER to Transmission Range (TR) Sensor in the Adjustments portion of this section. PERFORM On-Board Diagnostics. PERFORM Pinpoint Test A. SERVICE as required.
Instead, this is easier to do; Testing w/Connector Pin-Out Diagram
Source: by SeattleFSB (Seattle FSB) at http://www.supermotors.net/registry/media/863652
P0171 - System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. For lean and rich DTCs:
Excessive fuel pressure.
Leaking/contaminated fuel injectors.
Leaking fuel pressure regulator (pull vac line to FPR, any gas or gas aroma means diaphram ruptured; replace).
Low fuel pressure or running out of fuel.
Vapor recovery system.
Air leaks after the MAF.
Improperly seated engine oil dipstick.
Stuck EGR valve.
Leaking diaphragm or EVR.
Exhaust leaks in the exhaust manifold or gasket or mating gasket before or near the heated oxygen sensor(s) (HO2S)
P0174 - System to Lean (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. See Possible Causes for DTC P0171.