No power to the front Fuel Pump

[BillRod]

88 Ranger, 2.9L V6, 5speed Mitsubishi, 4x4, ext cab,
No power accessories, no air, no cruise.

No power to the front fuel pump.

-OBD1 reader shows code 95 "Fuel Pump Secondary Circuit Fault"
It also shows:
67 Neutral Pressure Switch
14 Engine RPM Sensor Fault (diesel)
29 Insufficient input from vehicle speed sensor.

- Ground is good as I put a meter from the battery post to the connector on the pump and there are Zero ohms of resistance.
- I also ohmed the engine and frame and a bunch of other places and ground seems to be ok everywhere except the pump connector.
- I probed the fuseable links coming off the solenoid and they appear ok.
- I used a jumper wire across the inertia switch.
- Fuse #18 for the Electric Fuel Pump Control is good.


What is a Neutral Pressure Switch?
I am familiar with the Neutral sensing switch on the trans.
That seems to work as the engine will only crank when the clutch is all the way down.

What is the Vehicle Speed Sensor?
The Chiltons states it is 1/2 way down the right side of the transmission assembly. But the only thing on either side of the tranny is the backup light switch.

Any thoughts?

 

[Area 52]

Did you also jumper the clutch switch? This would be the neutral switch the code refers to.

 

[BillRod]

Did you also jumper the clutch switch? This would be the neutral switch the code refers to.

NO, I figured since the starter would only spin when the clutch was totaly depressed the neutral switch was working.

Doesn't that make sense?

Bill

 

[Area 52]

Sorry...missed that in your original post. Howzabout the FP relay?

 

[Earl43P]

If you aren't getting power to the FP, next step back is the inertia switch, located where the passenger's toes hit. Check for power through that or jumper its connector after making sure to press the reset button.

 

[BillRod]

I jumpered it with no change.