E30 bad ignition?

[Younge30kid]

325e. Turn the key it cranks. And cranks. And cranks. No spark. Used a multimeter on the ignition coil. No volts. Dont think im using it wrong. Where would i go from here?

[actletpone]

crank sensor?

[Kershaw]

Pull a plug, if it's soaked with fuel then it's not the crank sensor. But I'm betting it's dry and it's the crank sensor.

[my1stE30]

I agree ..
- it is likely the crankshaft position sensor (located on the bell housing for the 325e engine)
- or the next thought would be fuel pump (but the fuel pump will not engage if the cps is not working anyway)

[87Cabrio89is]

I currently have a no start, no spark that I will continue troubleshooting soon. Regardless less of CPS, there should be voltage t the coil. Thes tests should all be performed with a fully charged battery. Remove battery terminals, remove all wires from coil, ohm test coil using a good voltmeter between +15 and the other smaller terminal and then +15 and center. Bentley explains this quite well. I suspect that you have either a bad coil or ignition wiring if you properly checked coil voltage and didn't have any.

[Kershaw]

I don't think you'll have voltage at the coil if the CPS is not working properly. Coils are usually the last thing to go bad, I've seen some that were way way way out of spec running just fine.

[Jcrunk]

I agree ..
- it is likely the crankshaft position sensor (located on the bell housing for the 325e engine)
- or the next thought would be fuel pump (but the fuel pump will not engage if the cps is not working anyway)

says who?

you guys all say a lot of different things on here, some of you say you need power to the dme for it to work, some say its the crank position sensor, some say the fuel pump should kick over even if there is no key in the ignition, there is always power running to these things...