by Corsair » Mon Aug 05, 2019 9:56 pm
Back Work ceased over weekend. New fuel pump fitted --old one sounded feeble --all new pick up, delivery and return pipes fitted in trunk section no leaks RPM RELAY jumped 30-87 pump runs vigorously relay socket and wires very hot?
Sensor plate solid pressure-- no injector noise at 3mm or any deflection ( thanks Mike for the video as I didn't know what noise was required ) and nothing holding a screwdriver on them. Engine fires begins to run then dies under above condition. Fuel pump sounds to enter prime mode for a few seconds as it dies. So fuel starvation after Cold start valve prime due low injector pressure ? Spark tested as above .Also Coil voltage increases from +\- 5v rising through 9 v while cranking before firing.
I Think ---- The only thing that brought on this no start condition was my replacing that kinked return pipe to the tank which released full instead of 10-15% return flow and 0 back pressure to distributor. If Primary pressure was set up WITH this back pressure 5.3-5.5bar may not being achieved to open injectors.
Discuss. I am out of knowledge and in your hands,!!! Chris