Delphi EFI System: Troubleshooting and Maintenance

SpudRider · 12-19-2015, 04:00 AM

Electronic fuel injection has seven basic advantages.

1. Improved Fuel Mileage of 10% to 15%
2. Improved starting and cold engine performance without engine warm-up
3. Improved acceleration and smoother throttle performance
4. ECU protects engine components while operating at high engine temperatures and rpms
5. Improved engine performance with varying temperatures and elevations
6. ECU provides diagnostic trouble codes to facilitate troubleshooting of engine problems
7. Cleaner engine emissions

Delphi EFI System Design

Delphi EFI employs 5 sensors to monitor engine performance.

1. Crankshaft Position Sensor
2. Coolant Temperature Sensor
3. Oxygen Sensor
4. Throttle Position Sensor
5. Manifold Air Pressure/Manifold Air Temperature (MAP/MAT) Sensor

Delphi EFI employs the following system components.

1. MT05 Engine Control Unit (ECU)
2. Fuel Pump
3. Multec 3.5 Fuel Injector
4. Idle Speed Control Valve (Idle Stepper Motor)
5. Multec Ignition Coil
6. Fuel Vapor Canister Purge Valve

12-19-2015, 04:00 AM	#1
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Delphi EFI System: Troubleshooting and Maintenance Electronic fuel injection has seven basic advantages. 1. Improved Fuel Mileage of 10% to 15% 2. Improved starting and cold engine performance without engine warm-up 3. Improved acceleration and smoother throttle performance 4. ECU protects engine components while operating at high engine temperatures and rpms 5. Improved engine performance with varying temperatures and elevations 6. ECU provides diagnostic trouble codes to facilitate troubleshooting of engine problems 7. Cleaner engine emissions Delphi EFI System Design Delphi EFI employs 5 sensors to monitor engine performance. 1. Crankshaft Position Sensor 2. Coolant Temperature Sensor 3. Oxygen Sensor 4. Throttle Position Sensor 5. Manifold Air Pressure/Manifold Air Temperature (MAP/MAT) Sensor Delphi EFI employs the following system components. 1. MT05 Engine Control Unit (ECU) 2. Fuel Pump 3. Multec 3.5 Fuel Injector 4. Idle Speed Control Valve (Idle Stepper Motor) 5. Multec Ignition Coil 6. Fuel Vapor Canister Purge Valve __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 Last edited by SpudRider; 12-19-2015 at 11:55 AM.
	2