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Re: Replaced cyl head assy, now engine won't start
Fuel pump won't run unless it starts, it is designed to run for two seconds then shut off, if it were to run and you had a damaged line you would cause a fire. The cam shaft sensor gives you spark and injector firing but the crank sensor has to work two, check to see if you pinched off the wires on the crank sensor, also does it have a coil pack? If it does leave me a post.
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Doubtful you have a fuel pressure problem if the car runs well, poor starting can be a few things , poor air circulation air filter needs cleaning or replacing, poor injector flow warn injectors or just dirty fuel additive sometimes clears this , poor spark plugs not firing under pressure ok when started . for diesel cars you don't say what car it is , poor glow plugs . bad fuel filter , air leaks in fuel pump , poor injectors . and especially with diesel poor compression due to worn rings or head gasket failure . You may even have just have disturbed the engine earth strap when you replaced your starter motor .
And you know the fuel filter is good? Could be injector problem: just as a check, spray some starting fluid into the intake and see if engine runs a few seconds. If it does, it is a fuel problem. Check injector fuse, as a start. Check fuel pressure. Check injector circuit. If engine won't start with starting fluid, check if you are getting spark. Problem may be in the ignition system.
Sounds like you replaced alot of parts for nothing. The pickup coil in the distributor "fires" the module which grounds the coil and the injectors. Those components would need to be tested. The coil fires the plugs when the ground is removed by the module or the key switch.
You need to drive it, and when it stalls and won't start, then is when you need to check to see what you are loosing. Spark? fuel pump? or injector signal?
Spark, you will need to hook up a spark tester to one of the plug wires and have someone turn it over.
fuel pump, leave the key off for a minute, and then turn it to "run" and see if you hear the pump. (listen at the gas cap, as it should cycle for a second or two)
Injector signal, for this you need a "noid" tester that plugs in where your harness meets the injector, and have someone turn over the engine with the key, and you should see a blinking light, meaning that your computer is telling the injectors to fire.
check backnnector on distributor assy. It's hard to find because is on the side just in the point nobody reach. Often it missconnect or broke. check, fix or re adjust as needed. check firing order of cables
If not result....
1.-unplug any spark cable and put a screwdriver inside it and place it in a safe place near a ground point. The object is try to see the spark jumping to ground. 1 or 2 cm will work for it. If you see spark, check fuel pump circuitry. uncap carburator and see if injectors spray gas when you try to engine. If you can see spark, change module inside the distributor cap.
if injector doesn't spray,check fuel pump, you must hear it for few seconds when you turn key to accs if you place your ear near thank. fuel pump work for few seconds but no spray on injectors: the same module above mentioned. if injector sprays and spark jump, the car must start
it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke. the firing order is 1-3-4-2. they should be hooked like this.