No spark and no injector pulse on a 92 capri 1.6 turbo, dizzy and knock module changed. relays and fuses good, wiring all checks good

check your PGMFI (Fuel Injection Main Relay) if it's good then check the Fuel Pump for power with a probe tester. what do fuses 30 & 31 operate? maybe there is a short and maybe it has to do with those 2 fuse lines working against each other or maybe they are bumping heads with the injectors electrical wiring. my first advice is to check the fuel injection main relay and the fuel pump first.

Injectors get their power from the main relay and get their ground signal from the computer. The power to the injector wire is BK/W , The input power wires to the relay are blue. Jump these two wires to bypass the relay. The blue wire gets it's power from the EGI fuse in the engine compartment fuse box. If fuse is ok, jump a 12 volt source wire to terminal on relay to repair problem.
Capri main relay
This Mercury Capri main engine control relay is located under/behind the LH headlight (bucket) and interfaces with the PCM/ECU. this is a double relay.... one set of contacts according to the wiring diagram. runs just the injectors.. the other set run a bunch of other devices on the motor.
According to the manual the STO (self test output) of the ecu/pcm....when tested...is supposed to read STO low or 0 volts and if anything would be wrong the needle on an analog V ohm meter will sweep back and forth from low to 12 volts to spell out the
code for the problem. When it stays at 12v would that indicate that the PCM is bad?? Check the main relay that is located behind the drivers side headlight can but to do so remove the coolant overflow bottle. In the process of testing, check for corrosion on the blue wire that goes into the green three wire connector.repair any brakes in the wires

check all the pick ups ?? whats pump relay doing when cranking????? need more info?????????

you need to check if you have spark as well if not, the crank sensor may have failed

The pulse to switch the coils comes from the crankshaft sensor via the ecu. Pulse to switch injectors comes from the CAMshaft sensor via the ecu. Check injector wiring plugs and confirm there is an ignition live of 12v at one side. Other side should have an earth pulse when cranking.Once you know which is missing you can trace the fault backwards. ( if no ignition live then check wiring, relay, fuse etc) if no earth switching check camshaft sensor and wiring.

Make certain there are no blown fuses to the engine controller or ignition system. Is there spark from ignition coil when engine is cranked over? If not, test your distributer pickup coil. If the pickup coil or ignition module are not functioning, you will not have injector pulse or secondary spark.
Good luck.

under drivers seat to rear of 2 tin covered relays 1 for fuel pump 1 for pulse injetors and spark [must have twin contacts inside] if wrong relay you will either get spark no injector pulse or pulse injector no spark [had similar prob myself]

Put in a new crank sensor, this is what puts the power to the coil.

Solved most of this myself. Changed ING. module which solved spark problem. The injectors still would not function, help came from JUSTANSWERS by idenifying a relay tucked between the left headlight motor and the coolant recovery canister. Like the IGN. module, this relays not cheap. I found a $5 dollar used replacement from a self-pull wrecking yard from it's sister car, a 1988 mazda 323.

looking at the schematics, well the PCM controls the pulse width to the injectors , BUT , there is a injector coil fuse , its #2 in your kick panel fuse box , a 20 amp , check it , sure hope that fix ya . that would be sweet .

J5