Crankshaft sensor. It makes both or the signals to those work. Good Luck!
Just fixed this problem on a 1990 4.3. The pickup coil inside the distributor was bad. No signal was sent to computer to fire injectors. Make sure distributor is grounded well and if there is corrosion visible inside distributor save time and frustration by just replacing the distributor. I found several new ones on eBay for under $100. Had spark enough to run on starting fluid or if I poured gas in the throttle body but the injectors had no signal if checked with NOID light.
can the fuel injectors on a 1994 grand marquis be checked without removing them from the engine, if so what type of instrument do i use
have the Fuel injectors checked out.
Have your injectors checked or changed, burnng to much fuel
The computer maybe fubar(no good)? have you checked the plug wires distributor cap and rotor? could be the distributor its self or possably the pick up coil
Check to see if there is a internal advance mechanism in your distributor. On older GM models bushings would wear causing it to stick and causing a surge or bucking as the advance within the distributor would release. Your computer regulates the advance, however, have the distributor checked.
Have you checked for trouble codes in the engine computer? Do you have access to a scan tool? You need a scan tool so you can see if the cam and crank sensors are reading. Are all fuses good? Is the battery full charge? Is there voltage to the distributor? Is the distributor turning?
Have you checked all of the High Tension leads from the distributor to the plugs, or just one or two? Same with HT lead from Coil to Distributor, Check Distributor cap for cracks
Sensor??? A misfire is usually caused by spark plugs and wires. After that you change distributor cap(if equipped) , fuel injectors, check for proper compression.
Fuel at the injectors or in the tank? If it is getting fuel to the cylinders, spark to the plugs and is in time, it has to run. Checked the plugs to see that they are not fouled? You can give it a shot of starter fluid and see if it fires. If it does, that means it's not getting fuel which means injectors, fuel pump, filter. computer, check the fuses under the hood.
have you checked inside the distributor . good luck
You could have bad injectors or glow plugs. It is hard to say without more information. Injectors would be the first thing I would have checked.