Pulled a plug and get one spark on any of the spark ignitors and then nothing, engine just turns over.

Was starting a week ago has just sat in the driveway

Any thoughts? Crank sensor cam sensor other?

Spark plugs are good and full charged battery. none of the ignition fuses are blown, under the hood or the dash!

Any thoughts or how to check crank sensor

 

The CEL should cycle on then back off when you turn the key on but don't crank. If it does that, that shows the ECU is at least somewhat working-- hook up an OBDII scanner and check for codes.

 

sorry for the ignorance, CEL?

There are no codes recorded on the scan.

What else short of a bad ECU would stop spark firing?

Thanks!

 

Check Engine Light.

Could be several things. You should measure that the coils, fuel injectors, and sensors are getting power while cranking. Also check the ground wires on the thermostat.

 

Are there any "normal" culprits" with a No Spark situation ? Is started two days before?

Thanks Folks!