I checked the number 1 plug wire for spark current Why wont it start?

Hello,

If you have both fuel and spark but the engine will just crank and not start, you might have a an issue with the crank position sensor.
If a crank positing sensor is faulty the vehicle can produce spark but will not start.
As the engine needs correct signal from the crank sensor to properly start.

Here are some helpful articles:

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor
https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

I have attached the replacement procedure for your reference.

Please let me know of any questions.

Thank you.