Greetings.Could someone tell me where to locate ECM plug port for 90 Park Ave.Went and looked at one the other day,Wanted to buy car for my son.Car would crank over,But no start.Engine is getting fuel,I think it has no spark.A friend of mine had a scan tool with him,But we did not locate where to plug in.Car sat all of last winter(Crappy Gas??) Had jumper cables to battery,As it was dead.Wanted to check with scan tool to see if crank sensor is bad.Any replys would be helpful.Thank you..Diesel 1962

Port should be under the dashboard, maybe covered by a small rectangular plate.

The following reasons can be the cause:
- Broken ignition cable
- Broken ingnition coil

Good luck.

Mike