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Diagnosis and Testing|Removal and Installation >
< 303-04E Fuel Charging and Controls - Liquified Petroleum Gas (LPG)|Specifications
Focus 1999 (08.1998-12.2004)
Mechanical Repairs
3 Powertrain / 303 Engine
303-04E Fuel Charging and Controls - Liquified Petroleum Gas (LPG)
Description and Operation
Diagnosis and Testing
Fuel Charging and Controls
Fuel Charging and Controls - Liquified Petroleum Gas (LPG) - Fuel Charging and Controls
Focus 1999 (08/1998-12/2004)
Diagnosis and Testing
Principles of Operation
Item
Part Number
Description
1
–
Fuel injection supply manifold
2
–
LPG intake pipes
3
–
Throttle position sensor
4
–
Manifold absolute pressure (MAP) sensor
5
–
Main fuse box
6
–
Crankshaft position (CKP) sensor
7
–
Engine coolant temperature (ECT) sensor
8
–
Heated oxygen sensor (HO2S)
9
–
Fuses and relays
10
–
LPG select switch and gauge
11
–
Alternaitve fuel control module (AFCM)
12
–
Powertrain control module (PCM)
13
–
Standard corporate protocol (SCP) interface module
14
–
Fuel injectors
Inspection and Verification
Verify the customer concern by operating the system.
Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical
Electrical
Fuel leak(s)
Sensor(s)
Fuel injector(s)
Fuel intake pipe(s)
Fuse(s)
Wiring harness
Loose or corroded connector(s)
Relay(s)
LPG select switch
Central junction box (CJB)
Battery junction box (BJB)
Sensor(s)
Alternative fuel control module (AFCM)
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the concern is not visually evident, verify the symptom and refer to WDS/FDS 2000.
Mechanical Repairs
3 Powertrain / 303 Engine
303-04E Fuel Charging and Controls - Liquified Petroleum Gas (LPG)
Description and Operation
Diagnosis and Testing
Fuel Charging and Controls
Diagnosis and Testing|Removal and Installation >
< 303-04E Fuel Charging and Controls - Liquified Petroleum Gas (LPG)|Specifications