I've got a number of electrical issues, including a voltage leak somewhere. I've replaced the injection pump and remounted the FIPL (throttle position) sensor
and the E4OD transmission is acting up. When checking the voltages there, I found that the input voltage was around 5.7V. Also, the output voltage where it was supposed to be around 1.1V was about .45. Shouldnt' the input voltage at the FIPL sensor be 12V?


T

 

Fuel Injection Pump Lever sensor--E4OD
The screws holding the FIPL sensor bracket to the injection pump are epoxied, but enough adjustment may be achieved by loosening the screws holding the FIPL sensor to its bracket.
The FIPL should be adjusted using a scan tool. Remove the throttle cable and return spring, reinstall the spring so that the throttle is held to WOT. Enter and retrieve KOEO and Continuous trouble codes. After both fast and slow codes have been retrieved, turn on the scan tool speaker and press and release the OverDrive Cancel switch. Continue to press and release the ODC switch until the scan tool begins to beep repeatedly. A gauge block for the throttle lever can be improvised using the 13mm head of an 8mm bolt. Insert the head of the bolt between the flat boss on the right side of the injection pump and the throttle travel screw.

The beeping should become a steady tone. If it doesn't, loosen the FIPL sensor (T-15 torx screws) and adjust to get a steady tone; a faster beeping occurs when the the FIPL is set too low.
If a scan tool is not available, connect an ohm meter to the top and center FIPL terminals and adjust to 1800 ohms +/- 50 ohms. You can check the adjustment of the FIPL by back-probing the center wire of the FIPL sensor connector with a digital volt meter. The voltage should read 1.0-1.1 volts at idle, 1.6-1.9 at 30 MPH, and 2.0-2.5 at 55 MPH.
If these readings can't be achieved, replace the FIPL sensor and re-start this procedure. It may be necessary to remove the epoxy from the bracket screws (T-27 torx screws) to adjust a new FIPL sensor.

 

Hey Bill,

Easton, huh? I'm from Meriden, a long, long time ago...

This is a 1990 F250 7.3 diesel.

Tom

 

I am assuming the E4OD computer is just like the other computers Ford makes, and they all use 5v for the throttle position sensor supply.

 

Thanks guys,

I figured with all the other wiring problems I had that 5V supply to the FIPL sensor was just another one of them...

I probably need a new 'sensor'. According to lots of posts here and other Web sites these are notorious for going bad; and apparently Ford now has a more reliable design in gray. The transmission wasn't shifting well before I replaced the injection pump, so it probably wasn't only my inexperienced remounting of the sensor. I've got a code reader coming this week so I should be able to tweak the settings in the proper dieselman method if the existing sensor works. If not, I'll replace that and re-calibrate.

Thanks again,

T

 

I am guessing also that the TECA is something like the PCM and most likely has the same 5-Volt Regulator in it so I would say it should be 5-Volts DC.
I would think 5.7V is to far off and would cause a lot of problems.



/

 

I've gotta check #355 again to see if it's really 5.7V or just what it is.

The diagram you posted is much more readable than the one I've got in the Ford wiring diagram book. Is it available on-line?

Thanks,

T

 

The 5-Volts should be on the circuit #351 and not the #355.
Ground return is circuit #359 and the position information circuit is #355 going back to the TECA.

The diagram is from the 1992 Ford E&VT Manual.

NOTE
If the #355 that you speak of is from your 1990 Wiring diagrams then you may have the right circuit as the numbers do change from year to year.
I am using the numbers of the above-posted 1992 diagram.


PS
MAP sensors use 5-Volts so it would have to be 5-Volts