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Category: What do those technical names / bits do? 
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What is a Glow Plug and what can go wrong?
  9.0 - 3 votes
What is the difference between Petrol and Diesel
  5.5 - 2 votes
What does Direct Injection for a Diesel Engine mean?
  10.0 - 1 vote
What is a Diesel Engine?
  10.0 - 1 vote
What is an ECU
  9.0 - 1 vote
What is an EGR valve?
  9.3 - 9 votes
What is MAF Sensor?
  5.3 - 3 votes
What is a Particulate Filter or DPFS and EOLYS Fluid?
  9.2 - 15 votes
What is Torque
  9.3 - 3 votes
What are Parking Sensors
  9.5 - 2 votes
What are Speed Limiter and Cruise Control
  9.0 - 3 votes
BHP Brake Horse Power
 
What is a Turbo?
  7.5 - 2 votes
What is a CAN bus and how does fitting a tow bar to a C4 affect things?
  9.4 - 22 votes
What is an Intercooler?
 
What is Anti-Bursting Bomb?
 
Tyre Side Wall Codes
 
Economy mode C4 Coupe, Hatch and C4 Picasso
  9.3 - 13 votes
Fixed Centre Steering Hub
  9.7 - 4 votes
How does a Dual Mass Flywheel work?
  9.8 - 7 votes
What is digital radio (DAB)?
 
CITROEN PEUGEOT PSA specific DTC error (fault codes)
  10.0 - 5 votes
What is a Map Sensor?
  1.5 - 2 votes
What is a 'CAT' (Catylitic Converter)
  9.5 - 2 votes
What is a 'Fuel Pump'
 
What is a Lambda Sensor?
  9.5 - 7 votes
What is a Temperature Sensor?
  5.0 - 1 vote
What is a 'Throttle Potentiometer'?
 
Ignition Coil
 
Engine Speed Sensor - Magneti Marelli 6lpb fuel injection
  8.0 - 1 vote
Camshaft Sensor - Magneti Marelli 6lpb fuel injection
  6.5 - 2 votes
Accelerator Sensor - Magneti Marelli 6lpb fuel injection
 
Engine coolant temperature sensor
  10.0 - 2 votes
Air temperature sensor
 
Knock sensor
 
Engine Oil, what is it and is it worth the money?
  9.3 - 11 votes
Petrol, just what is in it?
  10.0 - 1 vote