OK plese bear in mind im 82 years old now...slow on the keys on home computor...and have now " Shaky " hands" so have to check everything i write..and edit if required before sending. OK on the Thermo- timer ...it has one terminal on it That iS NOT FUSED its so important...wrong terminal burns out the contact points inside the Timer..so if your not certain... with the new Timer before fitting with your meter check for continunity on each terminal to the metal caseing of the new sensor...ie both terminals will be negative earth once fitted in engine block...so now pop the sensor into a Pot..just a little water to cover the sensor...but not as High enough to reach the terminals..bit tricky..can be done..with your meter note again each terminal is showing closed circuit..ie both earth to caseing...slowly heat the water..the first terminal that goes open circuit....note it...thats the one the Ford loom colure " Brown / white "...OK...must be correct..so with that when cranking now with a cold engne the 5th cold start injector will spray High pressure Fuel...i would take the injector out and see for your self..pop the injector into a can / bottle for safty...diconnect the ignition coil as well. as just want to check for a good spray...if its good reconnect coil..try to start now..all well it should be on the button..burst in life..sound OK..but engine stop after 3 seconds...but your getting somewhere..more to write then on the pressure actuator...allways bear in mind continual cranking activats that outher terminal on Thermo sensor..to shut off the 5th injector...stopping a explosion that could happen with all the Fuel in manifold...Sensor can take up to 10 mins to reset... hope you understand all.... Peter