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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)

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

  1. Verify the customer concern by operating the system.
  1. 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)
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. If the concern is not visually evident, verify the symptom and refer to WDS/FDS 2000.

Diagnosis and Testing|Removal and Installation > < 303-04E Fuel Charging and Controls - Liquified Petroleum Gas (LPG)|Specifications