Blown sensor plug at bottom of fuel filter housing

One of your glow plugs is grounding and blowing fuse replace faulty plug

Hi,
Here is the location of the "Knock Sensor" you requested, I hope it helps you. It is Number 17. for future reference here is the list of the others
1 = Camshaft position sensor (CMP)
2 = Crankshaft position sensor (CKP)
3 = Engine Control relay (EC) -engine bay fusebox/relay plate 1
4 = Engine Coolant temperature sensor (ECT)
5 = Exhaust gas recirculation valve actuator (EGR)
6 = Fuel Filter
7 = Fuel Filter Heater - in fuel filter housing
8 = Fuel Flow control valve - on high pressure fuel pump
9 = Fuel Rail pressure sensor(FRP)
10 = Fuel Temperature sensor - on high pressure fuel pump
11 = Glow Plugs
12 = Glow Plug Relay 1 - engine bay fuse box/relay plate 2
13 = Glow Plug relay 2 - engine bay fuse box/relay plate 2
14 = High Pressure fuel pump
15 = Injectors
16 = Intake air temperature sensor (IAT) - in MAF sensor
17 = Knock Sensor (KS)
18 = Mass Air Flow sensor (MAF)

i
Inside of the fuel filter housing is a heating element, a fuel warmer. It is common for this element to break the spot welds of it's mounting plate and ground out against the housing, hence it blowing the fuse every time you try and warm up the glow-plugs. Take the top off of the fuel filter housing and remove the filter, then look into the bottom of the housing and see if the heater is touching the walls of the housing. If this is the problem you should be able to unplug the fuel heater and have the engine start until you get the heater replaced.

Needs to have at least 3o lbs of fuel pressure,may need to rent
a gauge from your local parts house.
Plus make sure all the ground wires are attached (bell housing
bolt is where the ECM ground is,I think)

Do you have access to a scanner?
How did you check your FICM? Does it have 48 Volts?
If you have a scanner, does the computer show RPM? If not it could be the crank sensor.
Is the Crank Sensor and Camshaft Sensor in SYNC with one another?
When cranking does the desired IPC read at least 500PSI? The list goes on and on. Check to to see if the 30amp fuse for the fuel heater isn't blown. They are known to short out? Do you have fuel in the filter housing? The pump might have died. Unless you have a scanner, your at a stand still. Just don't start throwing parts on it.

Here is the steps for the removal and replacement...getting you the picture and location next. 6.6L Engine

1. Disconnect the negative battery cables.
   
2. Drain the fuel from the fuel filter as follows:
   
   • Install a hose on the water drain on the water-in-fuel sensor.
     
   • Place the other end of the hose into an approved container.
     
   • Drain as much fuel as possible from the fuel filter housing.
     
   • Tighten the water drain on the water-in-fuel sensor.
     
3. Remove or disconnect the following:
   
   • Water-in-fuel sensor harness connector
     
   • Fuel filter from the fuel filter/heater element housing
     
   • Water-in-fuel sensor from the fuel filter
     

Exploded view of the fuel filter (2)—6.6L engine

To install:

1. Install or connect the following:
   
   • Water-in-fuel sensor in the fuel filter
     
   NOTE Check the fuel filter/heater element housing and the filter for a dislocated filter seal or foreign debris. Contamination on the filter/heater housing may cause leakage at the fuel filter. Coat the seal with clean engine oil.
   
   
   • Fuel filter on the fuel filter/heater element housing
     
   • Water-in-fuel harness connector
     
   • Negative battery cables
     
2. Prime the fuel system:
   
   • Pump the primer located on top of the fuel filter 30 times or until stiff.
     
   • Try to start and run the engine. If the engine does not start, repeat the previous step.
     
   • Allow the engine to run for 5 minutes at idle.
     
   • Check for fuel leaks and clear all Diagnostic Trouble Codes (DTCs).
     

ITS A SPIN ON FILTER, YOU NEED TO DISCONNECT THE WATER SENSOR ON THE BOTTOM OF THE FILTER, THEN USING A STRAP FILTER WRENCH LOOSEN THE FILTER AND SPIN IT OFF.

CHECK THE FILTER HOUSING TO BE SURE THE INNER FILTER SEAL ISN'T ON THE HOUSING AND CAME OFF WITH THE FILTER.

REMOVE THE WATER LEVEL SENSOR AND DISCARD THE SEAL.

INSTALL THE WATER LEVEL SENSOR ON THE NEW FILTER. USING A LITTLE GREASE ON THE INNER FILTER SEAL AND ON THE OUTER O-RING TO HOLD IT IN PLACE, SPIN ON THE NEW FILTER.

OPEN THE VENT ON THE UPPER SIDE OF THE FILTER HOUSING. PUSH DOWN ON THE HAND PUMP QUICKLY UNTIL THE FUEL IS COMING OUT OF THE VENT. CLOSE THE VENT AND PUMP THE FILTER PUMP UNTIL IT FEELS SOLID. AT THIS POINT START THE ENGINE. IF IT STALLS PUMP IT UP AGAIN AND RESTART THE ENGINE. IF YOU HAVE AN ASSISTANT THEY CAN PUMP THE FILTER PUMP WHILE THE ENGINE IS RUNNING AND QUIT WHEN YOU FEEL THE ENGINE IS NOT GOING TO STALL. ABOUT 10 TO 15 SECONDS USUALLY WORKS.

CHECK FOR LEAKS.

BEFORE STARTING THE ENGINE USE BRAKE WASH TO REMOVE THE FUEL SPILLED DURING THE FILTER REPLACEMENT. ALLOW IT TO DRY BEFORE STARTING THE ENGINE.

RATE ME PLEASE.

Removal

1. Relieve the Fuel System Pressure . Refer to the procedure in this section.
   

Cushion Cover and Pad, Rear Seat — One-Piece and 50/50 Split Fold Removal

1. Remove the two rear seat cushion bolts.
   

1. Fold the rear seat back cover and cushion (60084) forward.
   

1. Carefully pull the rear seat cushion and cover (60030) out from under the rear seat back cover and cushion and remove the rear seat cushion and cover from the vehicle
   

1. Remove the rear seat cushion and cover (60030). Refer to Section 01-10 for the removal procedure.
   

1. Remove the three luggage compartment floor cover hold-down pins and fold the luggage compartment floor cover (45455) forward until the fuel pump assembly access plate is visible.
   

1. Remove the four fuel pump assembly access plate screws, the ground lead, and the fuel pump assembly access plate from the chassis.
   
   
   
   
   

1. Disconnect the fuel pump assembly electrical connector.
   
   
   
   
   

1. On 4-door vehicles, remove the fuel vapor tube shutoff valve bolt and the evaporative emission tube shut off valve (9G332) from the bracket on the fuel pump assembly housing.
   
   
   
   
   

1. Loosen the two hose clamps and disconnect the two fuel pump hoses from the fuel pump hose fittings on the fuel pump assembly housing.
   
   
   
   
   

1. Remove the four screws (2-door) or eight screws (4-door) and lift the fuel pump assembly housing from the fuel tank (9002).
   
   
   
   
   

1. Disconnect the fuel level sensor electrical connector.
   

1. Remove the two fuel level sensor washers and fuel level sensor nuts and the fuel level sensor.
   
   

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Section 10-01: Fuel Tank, Filters, Lines and Electric Fuel Pump 1996 Aspire Workshop Manual
REMOVAL AND INSTALLATION Fuel Pump Removal

1. Remove the fuel level sensor. Refer to the Fuel Level Sensor removal procedure in this section.
   

1. Remove the fuel pump screw, fuel pump grommet and the fuel pump bracket from the bottom of the fuel pump (9350).
   
   
   
   
   

1. Remove the fuel tank sender filter bracket, fuel tank sender filter (9A011) and the fuel tank sender filter retainer from the fuel pump.
   

1. Disconnect the fuel pump electrical connector.
   

1. Remove the clamp and the fuel pump from the fuel pump assembly housing.
   

id replace the sensor as soon as possible.

Replace the drain valve. They leak all the time.