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> Need Photos/Diagrams to help hook up L-Jetronic FI on 1975 Porsche 914 2.0L 4cyl, L-Jetronic Help
91422.7
post Mar 25 2015, 12:36 PM
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I'm in the process of installing a L-Jetronic Fuel Injection System on a 1975 Porsche 914 2.0L engine, which I'm installing the engine etc. in a 1970 914 body. The FI system was reportedly from a 1975 914 engine along with the engine. I'm needing some good photos or good diagrams that will help locate where all the wiring goes.
Items I've been working from:
1) Haynes 914 Owners Workshop Manual
2) Internet flow charts and electrical charts

From the attached photos, you can see on the FI wiring harness I have several wires that are hanging loose. I believe the ones on the p/s the 4 wires together go to the MPC Sensor in the picture. Anyhow any help would be appreciated.

From the picture you can see I have the wires going to the 4 injectors hooked up, not sure if they are going to the correct injector but I don't think it matters!

When I purchased the 2.0L Engine it had twin carbs on it, it possibly had some parts removed.

I think some of the wires go to the following items:

1) Cylinder head temp sensor
2) EGR Valve (which isn't going to be used on exhaust)
3) MPC Sensor (4 wire plug in)
4) Intake Manifold Temp Sensor
5) Thermostat Switch
6) Cold Start Valve
7) Engine Speed Relay
8) Throttle Valve Switch
9) Vacuum advance Disconnection 2-way valve
10) To starter terminal

.....Maybe I've answered my own questions? (IMG:style_emoticons/default/driving.gif)


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montoya 73 2.0
post Mar 25 2015, 12:54 PM
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I don't know if this book will help but it's good to know;

Introduction....page 4
Chapter 1....Electricity and Electronics....page 5
Chapter 2....Emissions....page 26
Chapter 3....Tools....page31
Chapter 4....Tuning the Bosch-Injected Car....page 36
Chapter 5....The Lambda Sensor....page 42
Chapter 6....D-Jetronic Fuel Injection....page 44
Chapter 7....L-Jetronic System....page 64
Chapter 8....LH-Jetronic System....page 87
Chapter 9....K-Jetronic Fuel Injection....page 101
Chapter 10....K-Jetronic with Lambda....page 129
Chapter 11....KE-Jetronic System....page 148
Chapter 12....Motronic System....page 159
Chapter 13....The Asian Connection....page 162
Chapter 14....Fuel-Injection Performance
Modifications....page 172
Index....page 175


CLICK HERE for "How to Tune and Modify Bosch Fuel Injection"
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