Land Rover Defender Workshop 1993 Rover Manual

E MISSION CONTROL 
EVAPORATIVE EMISSION CONTROL The  opening of the  purge  valve (2), which IS 
controlled  by the  MFI  ECM  occurs  when  the 
Fuel tank evaporative  control following  conditions  prevail: 
The  specification  for certain  countries  requires  the When  the  engine is running at speeds  above 
recycling 
of petrol  evaporation from  the  fuel tank.  For  1700 rev/min  and temperatures  above 54°C the ECM 
these  countries  only, a charcoal  canister and  purge  will  hold open the...

Operation FUEL EXPANSION  TANK 
As the temperature  rises, fuel vapour  in the  fuel  tank 
IS allowed to vent  into the separator/expansion  tank 
(1) via three  pipes  and a manifold  connector (3). Any 
vapour  which condenses  into liquid  fuel drains 
WARNING: Ensure  all necessay  precautions  are 
through  pipe 
(6) back into the main  fuel tank  and  taken against  spillage of fuel when  disconnecting 
residual  vapour is dealt 
with by  the  purge  system  expansion tank hoses. 
connection 
(4)...

DEFENDER 90 
Remove 
1. Loosen  filler cap to release any pressure  in 
2. Disconnect battery  negative terminal. 
3. Disconnect  pipe  connection to charcoal 
canister,  using  Special  Tool LRT
-19-002, 
press  down  on  collet  and 
pull connector. 
4. Disconnect  pipe  to fuel  tank  using 
tank. 
LRS-19-002. 
5. Remove four nuts 
and remove  expansion 
tank. 
ST3440M 
RR2872M 
Refit 
4. Coat  threads of sensor with anti-seize 
compound. 
CAUTION: To ensure  efficiency  of sensor is not 
impaired, DO...

RR2606E 
RR3899M 
EMISSION CONTROL 
Refit 
5. Reverse  removal  procedure ensuring pipes 
are  securely  crimped. 
CHARCOAL  CANISTER DEFENDER 90 
Remove 
1. Disconnect battery  negative lead. 
2. Pry out purge  valve. 
4. Loosen bracket  retaining  bolt. 
Refit 3. Disconnect pipe. 
4. Reverse  removal procedure.  Ensure that 5. Remove charcoal  canister. 
canister is securely  located  and both purge 
lines are fitted correctly to canister. 
CHARCOAL  CANISTER - PURGE VALVE 
DEFENDER 110 
Remove 
1....

EMISSION CONTROL 
RR595M 
POSITIVE CRANKCASE  VENTILATION  AIR POSITIVE  CRANKCASE  VENTILATION 
INTAKE FILTER  BREATHER FILTER 
The PCV air intake  filter is located  at rear of left Remove 
hand  rocker  cover, beneath  throttle linkage  bracket. 
Remove 2. Unscrew  canister and remove. 
1. 
Release  hose clamp, 
pull hose off canister 
3. Remove  large rubber  O ring,  inspect for 
1. Pry filter  cover  upwards to release it. deterioration. 
2. Remove  filter from cover and discard. 
4. Inspect...

ST3418M 
Defender 90 Emissions label - 1994 Model Year 
ST3459M 
EMISSION CONTROL 
EMISSION  LABEL 
A vehicle  Emission  Control information  label is located  in the  engine  compartment.  On Defender  110 vehicles  it 
is  attached  to the  air conditioning  unit. On Defender  90 vehicles  it is  adhered  to the  underside  of the  hood.  The 
label  gives  Engine  Tune Details  to ensure  that correct  emission  levels are achieved.  The label  is fitted  to 
comply  with U.S  Federal  and State  of...

FUEL SYSTEM 
DIAGNOSTIC EQUIPMENT 
IGNITION 
Electronic  Ignition Analsyer 
Lucas  Part No. 
- YWB 119 
Supplied  by Lucas  Complete with  instruction manual. 
MEMORY  CARDS 
Land Rover  Part  Numbers  include two memory 
card  and instruction  manual 
in appropriate 
language 
Suitable  for 14CUX  ECU 
ENGLISH 
..................... RTC  6835 
USA 
.............................. RTC  6836 
FRENCH 
...................... RTC  6837 
GERMANY 
................... RTC  6838 
ITALIAN 
..........................

FUEL SYSTEM 
HOT WIRE  MULTIPORT  FUEL INJECTION  Engine fuel temperature  sensor 
Description 
The  engine  fuel temperature  sensor  is located  in the 
fuel  rail forward 
of the  ram  housing.  The  engine  fuel 
The  ’Hot Wire’  Multiport  Fuel  Injection  system temperature  sensor  sends  fuel temperature  data to 
derives 
its name  from the  air  flow  meter  which  uses the ECM,  the ECM  on receiving the  data will adjust 
one  cold  wire  and one electrically  heated  wire 
to the injector...

FUEL SYSTEM 
Mass air flow  sensor 
The hot-wire  mass  air  flow  sensor is mounted on a It should  be noted  that  under  high coolant 
bracket  attached 
to the  left  hand valance,  rigidly  temperatures,  when the engine  is  switched off, the 
connected  to  the  air cleaner  and by hose 
to the condenser  fans  will  be  activated  and will run for 
plenum  chamber  inlet neck.  approximately 
ten  minutes. 
The  mass  air flow  sensor  consists of a cast  alloy 
body  through  which  air  flows....

FUEL SYSTEM 
ENGINE TUNING MULTI METER CHECKS 
ECM - MFI circuit  diagnosis To carry  out  tests when  40 way  multi-plug  is 
connected  to the  ECM, 
it is necessary  to remove  the 
Circuit  fault diagnosis  may be carried  out on all 
MFI two screws  securing  the shroud  to the  plug to  enable 
vehicles,  using  a good  quality  Multi  Meter 
or the the multi-meter  probes to be inserted into  the back of 
hand  held  tester  RTC6834.  The  tester displays  the the appropriate  pin. 
fault  code...