2001 Honda civic (100,000 miles) was driving at 55 miles per hour and then suddenly stalled out. Pulled over and restarted the car after which it backfired and then stalled out again. When the tow truck came, the driver drove it onto the bed, so it is running. Any ideas?

When is the last time you changed the fuel filter?

I would focus on the Crankshaft Position Sensor (CKP).

When is the last time you changed the fuel filter?

I am under the impression that the 2001 Civic does not have a true fuel filter, but has a "fuel sock" over the fuel pump that is not changed regularly (i.e. there is a problem). Is this correct?

I would focus on the Crankshaft Position Sensor (CKP).

Would a simple diagnostic indicate this as a fault? What will that entail work and price wise?

I would first remove the CKP Sensor, clean with WD-40, and reinstall. Yes, you always want to attach a code reader to the data link connector and check for codes. Sudden death on your year Civic is usually caused by a bad CKP Sensor, ECM, or COP.

If after cleaning the CKP Sensor the problem persists, I would install a new one. They are the most common source of your problem.

I would first remove the CKP sensor, clean with WD-40, and reinstall. Yes, you always want to attach a code reader to the data link connector and check for codes. Sudden death on your year Civic is usually caused by a bad CKP Sensor, ECM, or COP.

Great! Thanks for the advice. I will post how it turns out!

I would first remove the CKP Sensor, clean with WD-40, and reinstall. Yes, you always want to attach a code reader to the data link connector and check for codes. Sudden death on your year Civic is usually caused by a bad CKP Sensor, ECM, or COP.

If after cleaning the CKP Sensor the problem persists, I would install a new one. They are the most common source of your problem.

Thanks GreaseMonkey, you called it right. The CKP sensor. Additionally, the ECM appears to be having an issue. Nothing money won't solve!

Did you end up installing a new CKP? Since your Civic is so new, consider installing a remanufactured ECM, with a lifetime warranty, if necessary. Get an exact Honda Part No. match, should you need to replace it.