********** Fuel Delivery **********
Manifold Sensor - the measuring device that informs D-Jetronic fuel injection how much fuel to deliver to the engine based on vacuum below the throttle plate
Air Flow Meter (AFM) - the measuring device that informs L-Jetronic fuel injection how much fuel to deliver based on air flow above the throttle plate
Auxiliary Air Regulator (AAR) - the fuel injection component that insures correct idle speed when the engine is cold
Decel Valve - the fuel injection component that reduces hydrocarbon emissions during deceleration
Evaporative Emission Control (EEC) - the capture of fuel tank vapors
Double Relay - the component that powers/isolates the fuel injection system from the vehicle electrical system when the ignition is on/off, and that controls the fuel pump
Temperature Sensor II (cylinder head) - informs fuel injection computer of engine temperature to moderate fuel mixture
Temperature Sensor I (air intake) - informs the fuel injection computer of the temperature of incoming air
Bypass (throttle/mixture) - an adjustable gate to allow air to bypass either the throttle plate or the airflow meter flap to moderate either the idle speed or the fuel mixture
Vapor Lock - the vaporization of gasoline in a fuel line under high temperatures > cannot be pumped through a typical diaphragm fuel pump nor can it be delivered properly in fuel injection systems
Percolation - the expansion of fuel in a hot fuel line > can cause ...
... Flooding - too much pressure that allows fuel to drip into a carbureted engine, or, in a fuel injected engine with a leaky injector, preventing it from starting
Fuel Delivery Glossary
Carbs & F.I.
Jump to
- Itinerant Air-Cooled
- ↳ Faq & Links
- ↳ The IAC Mission
- ↳ Itinerary Archive 2007 - 2015
- ↳ 2007 Itinerary(s)
- ↳ 2008 Itinerary
- ↳ 2009 Itinerary
- ↳ 2010 Itinerary
- ↳ 2011 Itinerary
- ↳ 2012 Itinerary
- ↳ 2013 Itinerary
- ↳ 2014 Itinerary
- ↳ 2015 Itinerary
- ↳ 2016 Itinerary
- ↳ 2017 Itinerary
- ↳ 2018 Itinerary
- ↳ 2019 Itinerary
- ↳ 2020 Itinerary
- Technical Forums
- ↳ Troubleshooting / Diagnosis
- ↳ Body / Hardware
- ↳ Brakes
- ↳ Electrical
- ↳ Engine
- ↳ Field / Shop Tips
- ↳ Fuel Delivery
- ↳ Suspension / Steering / Tires
- ↳ Transaxle/CV/RWBearings
- Community Forums
- ↳ Type 1
- ↳ Type 2
- ↳ Type 3
- ↳ Type 4
- ↳ Porsche 911 / 912 / 914
- ↳ Save a VW!
- ↳ VW Related Stuff
- Whatever.....
- ↳ General Chat
- ↳ Free Speech
- ↳ Clubs, Get Togethers & Events
- ↳ Camping & Fishing!
- Classifieds
- ↳ Vehicles
- ↳ Accessories
- ↳ Parts
- ↳ 411 / 412 Parts
- ↳ Bay Window Bus Parts
- ↳ Beetle Parts
- ↳ Karmann Ghia Parts
- ↳ Porsche Parts
- ↳ Split Window Bus Parts
- ↳ Thing Parts
- ↳ Type 1 Engine Parts
- ↳ Type 3 Parts
- ↳ Type IV Engine Parts
- ↳ Vanagon Parts