So I have another problem the other day went go to start my car and it wouldn't start. It turns over I have plenty of battery power to start it but it just doesnt want to start. So I checked my plug wires and distributor cap and rotor all seems fine both are pretty much brand new only a few weeks old so I toke a voltmeter and hooked it to the coil and the readings are very low, so I got a new coil and installed it and still doesnt start so I checked the volts coming out of the plug wires and there was nothing showing up, but there were volts coming out of the coil wire. So I toke a metal screw driver and put it in the plug wire and there wasnt any spark at all so is there something within the distributor cap and rotor but I wouldnt think so cause its brand new.

Also when I turn my key over I hear the fuel pump kick on but it will turn off then I hear what sounds like sparks coming from the injectors like there is a short I looked at the injectors and seen nothing and I can hear fuel being shot through the fuel rail then it will stop and then the fuel pump will kick back on and I would hear that noise again. What would that be a ground wire problem or clogged injectors?

 

First off, dont EVER try to take a voltage reading from your spark plug wires (or your coils secondary tower). The voltage there is too high for your meter to read anyways. If you want to check your wires you take a resistance reading. you can ground a wire to check for spark (or you could get a spark tester).

The fuel pump circuit is designed to kick the pump on so that it primes the fuel system. If the car doesnt' start then the pump is going to be shut off as a safety feature (pump wont run if the engines not running).

If this is a non-turbo then check the air gap in the distributor to make sure it's correct. If its too wide or too narrow then you wont get the high voltage surge going to the spark plugs.

 

So I found out there is no spark going to the plugs at all would that be a ICU problem? I replaced pretty much everything that deals with spark the coil, distributor cap, and rotor. I wanted to know if any of you guys had a problem where you had to replace the ICU cause the cheapest I found this part was 85 bucks.

As far as the fuel pump goes yes the pump shuts off after it primes the engine but it comes back on again and thats when I hear the noise coming from the injectors, but I know fuel is getting inside the engine cause I took the plugs out and they had gas on them.

 

I've replaced a couple ICM's on the ZX's due to failure. It's actually a fairly common thing. If you can get a known good one and have exhausted all other options then thats probably your best bet.

BUT...if you've got spark coming out of the coil then its most likely not your ICM. The ICM controls the spark. If it's not operating then a spark is not going to be generated. When you checked voltage at the coil did you check the primary or secondary voltage?